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Whether it is Marine media players, navigators or communications equipment, the high humidity, salt spray and violent vibration of the Marine environment can accelerate the aging of electronic equipment. Mastering the scientific maintenance method can not only extend the service life of the equipment, but also ensure the safety of navigation and entertainment experience. Here are 3 core maintenance tips to help you easily cope with the challenges of a harsh environment.   Tip 1: Regular deep cleaning to prevent salt spray corrosion Why is it important? Seawater salt spray adheres to the surface of the device and penetrates into the crevices, resulting in rust of metal components and short circuit. Operation steps: Clean after power off: Power off the device, use a soft brush or air blow to remove surface dust and salt. Gentle cleaner wipe: Spray a neutral cleaner (such as diluted dish soap) on a microfiber cloth and gently wipe the shell and interface to avoid liquid infiltration. Key protection interface: USB, AUX and other exposed interface with a cotton swab dipped in electronic equipment special anti-rust agent (such as WD-40) gently coated, leave for 5 minutes and wipe dry.   Tip 2: Seal upgrade + waterproof storage to eliminate moisture hazards Why is it important? Even if the device is nominally waterproof (such as IPX7), long-term exposure to moisture may still degrade performance due to aging of the seal ring. Protection scheme: Seal ring maintenance: Check the rubber seal ring of the equipment hatch cover and the interface every quarter, and apply silicone grease to prevent cracks. Non-use period storage: When the ship is stopped, the equipment shall be disassembled and put into the moisture-proof box with built-in desiccant (humidity ≤40%). Waterproof cover: Deck equipment can be equipped with additional breathable waterproof cover to block the direct impact of waves (Marine waterproof accessories recommended) Tip 3: Shock-proof reinforcement + regular power-on to avoid component damage Why is it important? Ship turbulence is easy to cause internal solder joints to loosen, long-term idle may cause capacitor failure. Operation Guide: Installation of shock-absorbing support: Install rubber shock-absorbing base or spring support for the equipment to disperse the impact force. Monthly power-on maintenance: Even in non-sailing season, turn on and run for 30 minutes every month to activate the circuit and disperse moisture. Firmware upgrade: Connect to WiFi or computer to update device firmware and fix potential system vulnerabilities   Long-term maintenance = Safety + money saving By following these three tips, you can significantly extend the service life of your Marine electronics and avoid the maintenance costs and navigational risks caused by sudden failures. If you need a more relaxed choice, you may wish to directly upgrade to professional waterproof corrosion resistant equipment.

Click here to buy   Whether you're driving a luxury yacht, off-road RV, or an ATV, UTV or RZR conquering rough terrain, the immersion of audio and video entertainment and the durability of the equipment are always core requirements for outdoor adventure. To this end, Grandnavi has launched a new generation of waterproof Marine stereo media audio players - designed for extreme environments, redefining the outdoor video experience on water and land!   Product core highlights: one machine to conquer the limits of water and land IPX7 waterproof and dustproof Facing the waves splashing, storm or dust attack, the fuselage sealing structure with anti-corrosion materials, calmly cope with the ship deck, desert off-road and other harsh scenes.   All-terrain compatible AV hub Multi-band coverage: FM/AM radio + Bluetooth 5.0 wireless connection, compatible with mobile phones, tablets and other devices, outdoor can also enjoy streaming music. USB direct reading playback: Support U disk /TF card local music library, no network environment can still play (such as remote camp or sea voyage). Strong scalability: external car speaker, subwoofer, to create a shock sound field Minimal installation + impact resistant design Universal bracket suitable for cabin, RV console, UTV instrument panel and other mounting positions, screw fixed + rubber shock pad, effectively resist bumps and shocks. High brightness LCD screen + knob button, wearing gloves can also be easily operated.   Scenario-based solutions: Make adventure and entertainment seamless Sea navigation: zero corrosion in salt spray environment, Bluetooth hands-free call function to ensure driving safety, with Marine waterproof speakers to form a deck party system. Motorhome: AM radio to listen to real-time road conditions, USB to play children's stories, long travel family entertainment worry free. Cross-country crossing: Dust-proof fuselage to cope with the sand, heavy bass mode to enhance the excitement of wilderness driving.   User Value Upgrade: Why choose this player? Farewell equipment redundancy: one integrated radio, Bluetooth, local playback, saving car space. 24/7 reliability: Operating in a wide temperature range from -20°C to 70°C, stable output in extreme cold glaciers or desert temperatures.Click here to buy

Recently, an innovative 2-in-1 CarPlay AI Box was officially launched, bringing an unprecedented in-vehicle interconnection experience to the majority of car owners. This product, with its powerful features and excellent design, has attracted much attention since its launch. The AI Box supports wireless CarPlay and wireless Android Auto, allowing owners to completely get rid of the shackles of cables. Whether it is an Apple user or an Android user, it is easy to achieve a seamless connection between the phone and the car system, and enjoy a convenient intelligent driving experience. At the same time, it also has the function of wired CarPlay to wireless CarPlay adapter, plug and play, super easy to operate, without complex installation process, and truly make technology serve life. In terms of size, this AI Box uses a mini design, small and exquisite, does not take up space in the car, but contains a huge amount of energy. Moreover, it has excellent versatility, suitable for all models, whether you drive a luxury car or a low-end model, it can be easily adapted to add smart charm to your car. With the continuous development of automotive intelligence, consumers have an increasing demand for vehicle-mounted connected devices. The emergence of this two-in-one CarPlay AI Box just meets the needs of the market, providing owners with a more convenient, efficient and intelligent driving experience. It is believed that in the future, it will become a hot product in the field of vehicle interconnection and lead the new trend of industry development. At present, the product has been put on sale in major e-commerce platforms and offline stores, interested owners may wish to go to learn more details and personally experience the charm of this innovative product.

Under normal circumstances, 2009-2013 Seat 7 inch Android navigation system native does not support Apple CarPlay, if you want to achieve the relevant functions, you can refer to the following methods: Add CarPlay module Buy the module: Choose the CarPlay module for Seat models and the 7-inch Android navigation system, available in wired and wireless versions. Module installation: If you have strong hands-on ability, you can install it by yourself according to the module instructions. Generally, you need to disassemble the center control panel, find the corresponding interface behind the vehicle, and connect the CarPlay module to the vehicle; If you are not familiar with the operation, it is recommended to go to a professional car modification shop or repair shop, and be installed by professionals. Connect the phone: After the installation is complete, connect the iPhone to the USB port of the CarPlay module through the original Lightning to USB cable to realize wired connection; If it is a wireless CarPlay module, make sure that both Bluetooth and Wi-Fi of iPhone are enabled, enter "Settings" > "General" > "CarPlay Car" on iPhone, search and select the corresponding vehicle device for pairing and connection.   Use CarPlay boxes Choose a product: Buy a reliable and compatible CarPlay box. Installation and setting: Insert the CarPlay box into the USB port of the vehicle, then turn on the Bluetooth of the mobile phone and search for the Bluetooth signal of the CarPlay box for pairing and connection. Some CarPlay boxes may also require a special APP to be installed on the car, which can be installed and set up according to the prompts. Replace the engine that supports CarPlay Select a host: Choose an Android host that is the right size, has the right features and supports Apple CarPlay, making sure it is compatible with the interfaces and protocols of Seat vehicles. Professional installation: Go to the car modification shop or repair shop, and the original 7-inch Android navigation system is removed by professionals, and a new CarPlay-supported car engine is installed. Connection and use: After the new host is installed, follow the normal CarPlay connection method, connect the iPhone to the car through wired or wireless method, you can use the CarPlay function. After the connection is successful, when using Apple CarPlay, you can use Siri voice control, press the voice button on the steering wheel or say "Hey Siri" to activate, navigation, phone calls, play music and other operations; You can also click the icon and input text on the CarPlay interface through the touch screen of the car to complete the corresponding operation.

Click here for product details To choose a Marine Stereo Bluetooth display player suitable for your own ship, you need to consider many factors, the following are the specific points: Environmental adaptability Waterproof rating: Select the player with the appropriate waterproof rating according to the humidity level of the vessel's use environment and possible contact with water. Generally in the offshore or inland river sailing vessels, IPX5 or IPX6 grade can basically meet the needs; If you often sail in harsh sea conditions or vulnerable to waves, it is recommended to choose IPX7 and above waterproof products. Vibration and shock resistance: If the ship is shaking when sailing, such as high-speed speed boats, choose a player with good vibration and shock resistance to ensure that it can work stably in a bumpy environment, you can see whether the product has passed the relevant vibration and shock test standards. Corrosion resistance: high salt in the Marine environment, easy to corroded electronic equipment, should choose the shell with corrosion resistant materials, such as stainless steel, aluminum alloy or after special anti-corrosion treatment of plastic player, the internal circuit should also be anti-salt spray corrosion protection measures. Functional requirement Audio playback function: Consider whether it supports common audio formats such as MP3, WAV, FLAC, etc., whether it has equalizer adjustment, a variety of sound modes and other functions to meet different music playback needs. If you like to listen to the radio, you should also pay attention to whether there is an FM/AM radio function and radio effect. Video playback function: If there is a need to watch video on board, choose a player that supports high-definition video formats such as 1080P or even 4K playback, and check whether there is a video output interface for easy connection to a larger display. Bluetooth connection function: ensure that the Bluetooth version of the player is higher, generally Bluetooth 5.0 and above, with stable connection, long transmission distance, strong anti-interference ability and other advantages. At the same time, check the number and connection speed of connected devices, and whether it can be quickly paired with mobile phones, tablets and other devices. Other functions: Some players also have reversing image input, integration with the ship navigation system and other functions, if there is a related need, you can choose products with corresponding functions. Display characteristic Screen size: Select the appropriate screen size based on the size of the boat bridge or installation location. Large ships with large space can choose a large screen player of 8 inches and above, which is more convenient to operate and display more rich content; Small boats are suitable for 3-5 inch small screen players that take up no space and are easy to view. Resolution: high-resolution display can provide a clearer image and text display effect, generally choose 1280×720 resolution and above products, in strong light can also see the screen content more clearly. Display technology: Common screen technology such as IPS, TFT, IPS screen wide viewing Angle, high color reproduction, good contrast, viewing at different angles can have a better display effect, is a more ideal choice. Ease of installation and operation Installation method: Confirm that the installation method of the player is suitable for your boat, common are embedded installation and panel installation. Built-in installation is beautiful and space saving, suitable for new boat construction or vessels with reserved installation space; Panel mounting is more flexible and can be fixed directly to the bridge or other locations. Operation mode: Consider whether the operation is convenient, such as whether there is a large size of the physical button, easy to wear gloves operation; Whether the touch operation is supported and whether the touch response is sensitive; Some players with voice control function can further improve the convenience and security of operation. Brand and after-sales Brand reputation: Choose well-known brand products, which are more guaranteed in terms of product quality, performance stability and after-sales service. You can find out the reputation and credibility of different brands by searching online, consulting other crew members or viewing professional reviews. After-sales service: Understand the brand's after-sales service policy, including warranty period, maintenance service network, customer service response speed, etc. Good after-sales service can be solved in time when problems occur in the product, reducing worries in the process of use.

Click for product details Choose your own Android 13 system car radio, you can consider from the following aspects:   Consider hardware configuration Display: Factors such as the size, resolution and viewing Angle of the display directly affect the user experience. In general, the larger the screen, the more convenient to watch videos and operate navigation, but also consider the size of the space in the center console of the vehicle. The higher the resolution, the clearer the image, and the current mainstream vehicle display resolution is 1080P and above. The viewing Angle should be wide to ensure that the screen content can be clearly seen in different driving positions. Sound system: The quality of the sound system directly determines the auditory enjoyment of the car. Sound systems from well-known brands are usually more guaranteed in terms of sound quality and quality, such as Bose, Harman Kardon, Dana, etc. The number and layout of speakers can also affect sound, and multi-speaker systems can provide a more three-dimensional sound effect. In addition, it is also necessary to consider the power of the sound system, the greater the power, the louder the sound, but also be careful not to cause excessive burden on the vehicle circuit.   Focus on system compatibility Compatibility with the vehicle: The center console design and interface are different in different models, so the in-car entertainment system needs to be perfectly matched to the vehicle. When selecting, ensure that the system is compatible with the electronic system of the vehicle to avoid normal use or affect other functions of the vehicle after installation. Some original in-car entertainment systems often perform better in terms of compatibility. Compatibility with other devices: In addition to interconnection with mobile phones, the in-car entertainment system should also be compatible with other external devices, such as U disks, mobile hard disks, etc. Ensure that the system can recognize and read music, video and other files in these devices, so that users can use their own media resources.   Android 13 Car radio is a car audio device equipped with the Android 13 operating system, usually with the following features and functions:   Hardware performance Screen display: Generally equipped with high-definition touch screen, a variety of sizes, common 7 inches, 8.8 inches, 9 inches, 10.1 inches, etc., resolution up to 1024×600, 1920×720 or higher, can provide clear images and smooth operating experience. Memory and storage: There are different specifications of running memory (RAM) and read-only memory (ROM), such as 2GB+32GB, 4GB+64GB, 8GB+256GB, etc., to ensure smooth operation of the system and enough space to store applications, music, map data, etc. Processor: Most of the high-performance multi-core processors, such as 8-core processors, can quickly process a variety of tasks, including audio decoding, video playback, navigation, etc., to improve the response speed and overall performance of the system.   Functional characteristics Radio function: Support FM/RDS (FM/ radio data system), some also support AM band, can be preset multiple radio stations, easy for users to quickly switch to their favorite radio channels, listen to real-time traffic, weather forecast, news broadcast, music and other content. Bluetooth connection: With Bluetooth function, it can be paired with mobile phones and other devices to achieve wireless music playback, receiving and making calls, automatic loading of mobile phone contacts and other functions, making the driving process safer and more convenient. GPS navigation: Built-in GPS module, support online map and offline map, such as Google map, Baidu map, etc., through the connection of WiFi or mobile hotspot to obtain real-time road information, provide users with accurate navigation guidance, help users plan the best route, avoid congestion. Multimedia playback: supports a variety of audio formats, such as MP3, WAV, FLAC, APE, etc., as well as video formats, such as MKV, RMVB, AVI, MP4, etc. Users can connect storage devices via USB interface or play music and video files online. Mobile interconnection: Supports wireless CarPlay and Android Auto, can be connected with Apple or Android phones, the mobile phone screen is mirrored to the car radio screen, to achieve the expansion and convenient operation of mobile applications, and also supports the mobile phone screen function, convenient for users to view the content of the phone on the car screen. Steering wheel control: It can match and learn from the control buttons on the original steering wheel of the car, so that users can easily control the radio volume, change channels, change songs, answer calls and other functions through the steering wheel, improving driving safety.  

BMW Carplay AI Box is a product that can enable BMW to realize more intelligent vehicle and machine interconnection. The following is your detailed introduction: Product function Realize wireless connection: Upgrade the original wired Carplay of BMW to wireless connection, get rid of cable bondage, automatic connection on the car, convenient and fast. Intelligent voice control: Built-in AI voice control system, such as supporting Google voice, can operate navigation, music playback, phone calls and other functions through voice commands, making driving safer and more convenient. Rich application expansion: the original car screen can be upgraded to a smart screen, without changing the original car control screen, support online Google Maps, massive music playback, but also watch YouTube, Netflix and other video platform content, to solve the problem of the original car screen single function. Screen image function: Support iOS, Android mobile phone screen image, can project the content of the mobile phone screen to the car screen, convenient to view the application and file on the mobile phone. Multimedia playback support: Not only can you play multimedia content through the Internet of mobile phones, but also can support U disk multimedia playback, increasing the access to multimedia resources. Applicable vehicle type Suitable for a variety of BMW models ID6 ID7 ID8 ID8.5 ID9 Product advantage Non-destructive installation: Usually the original car directly inserted USB can achieve the function, without dismantling the car to change or remove the control screen, truly achieve non-destructive installation. Performance improvement: Some products use high-performance chips, such as eight-core CPU, running memory and body memory, to ensure that the system runs smoothly and responds quickly to various operation instructions.   How to install BMW AI Carplay Box?   Preparation before installation Verify product compatibility: Check the product description of the AI Carplay Box to make sure it is compatible with your BMW model, such as confirming support for BMW's IDrive system version. Prepare tools: Generally prepare basic tools such as pry bars and screwdrivers. If the installation is non-destructive, it usually does not need too many tools.   Installation Procedure Find the location of the interface: Usually the USB interface of BMW cars is in the central armrest or under the center console. Some models may have OBD interfaces, which are generally located under the main driving steering wheel, and some BMW models may have cover plates. Non-destructive installation: If the AI Carplay Box supports non-destructive installation, insert it directly into the corresponding USB port or OBD port. If it is USB interface, plug the USB plug of Carplay Box into the USB port of BMW car; For OBD ports, open the OBD port cover, align the OBD plug of the Carplay Box with the port, and ensure that the plug is firmly inserted. Need to disassemble the installation method: For some Carplay Box that needs to be connected to the main engine, it may be necessary to disassemble part of the center console. Use a pry bar to carefully pry open the decorative strip of the center control panel, then use a screwdriver to unscrew the fixing screws, remove the air conditioning panel, etc., and locate the engine. According to the installation instructions of Carplay Box, connect the corresponding connecting cable to the corresponding interface of the machine, such as video conversion cable, microphone cable, etc. After the connection is completed, restore the machine and panel, tighten the screws, and install the decoration strip.   Setup and test after installation Connect the phone: Turn on the Bluetooth and Wi-Fi functions of the phone, find the Carplay option in the phone Settings, click on the search and connect the AI Carplay Box. If you are connecting for the first time, you may need to perform pairing operations in the Carplay Box or on the car, and enter the pairing code on the phone as prompted. System Settings: After successful connection, set the functions of Carplay on the car or mobile phone, such as adjusting the display layout, sound output, etc. You can also personalize the built-in AI voice control and other functions in the setting interface of Carplay Box, such as selecting the wake word of the voice assistant and setting the operation range of voice commands. Function test: Test whether various functions are normal, such as operating navigation through voice commands, playing music, checking whether the screen image of the mobile phone is normal, and checking whether the multimedia playback is smooth.  

Click for product details   The characteristics and requirements of high-quality speakers for yachts, golf carts, motorhomes, off-road vehicles and UTVs are as follows: Common characteristics and requirements Durability: To use high quality, strong material manufacturing, can withstand frequent use, vibration, turbulence, etc., with good wear resistance, anti-aging performance, to ensure long-term stable work in a variety of complex environments. Reliability: The internal circuit and structure design should be reasonable, have stable performance, reduce the probability of failure, and can adapt to different working conditions and temperature and humidity changes. Sound quality performance: to be able to provide a clear, full, layered sound, the treble is bright and transparent, the middle is warm and natural, the bass is deep and powerful and not cloudy, there is a wide frequency response range, and the details of the music and the original timbre are restored as accurately as possible.   Characteristics and requirements of different scenarios yacht Waterproof: must have a very high waterproof level, usually up to IP67 or higher, can use special sealing technology and waterproof materials to prevent seawater, rain and other damage to the speaker. Corrosion resistance: It can resist the erosion of sea water and sea breeze, and the shell and internal components should be made of corrosion-resistant metal or plastic materials, such as stainless steel and anodized aluminum. UV resistance: The surface material should have good UV resistance to prevent the shell from fading and aging caused by long-term sunlight exposure, affecting the appearance and performance. Golf cart Small and compact: due to the relatively limited space inside the golf car, the size of the speaker should be small, easy to install in the right position in the car, such as the dashboard, doors, etc., without taking up too much space. Clear sound: In the relatively quiet environment of the golf course, pay more attention to the clarity and softness of the sound, to be able to clearly play music, navigation tips and other sounds, to avoid too harsh or noisy sound affect the playing experience. Beautiful appearance: The design should match the overall style of the golf car, the appearance is simple and beautiful, and the color and shape should be coordinated. Touring car Power adaptation: To match the power system of the RV, it can provide sufficient volume and sound quality within a reasonable power range, and will not cause excessive burden on the battery and circuit of the RV. Versatility: Support a variety of audio input methods, such as Bluetooth, USB, AUX, etc., convenient for users to connect mobile phones, tablets, music players and other devices to play different types of audio content. Flexible installation: The interior space layout of the RV is diverse, the installation method of the speaker should be flexible, and a variety of installation methods can be used, such as ceiling, wall mounted, embedded, etc., to adapt to different interior decoration and spatial structure. Off-road vehicle Strong earthquake resistance: with super seismic ability, the internal structure should be stable, the use of reinforced brackets, shock absorbing materials, etc., to ensure that in the rugged road driving, the speaker will not be loose due to vibration, damage or sound quality problems. Adequate volume: Due to the large noise in the car when the off-road vehicle is driving, especially when driving at high speed or off-road, the speaker needs to have enough volume and loudness to be able to play the sound clearly in a noisy environment, so that people feel the charm of music. Strong bass: many off-road enthusiasts like to listen to music with a strong sense of rhythm, and have higher requirements for the bass effect, and the bass unit of the speaker should be able to provide a strong and powerful bass, enhancing the impact and appeal of the music. UTV Good protection performance: UTV is used in a harsh environment, and the speaker needs to have good dust, water, mud and other protective performance to ensure normal work in a dusty, muddy and wet environment. Adapt to high temperature: UTV in the process of driving for a long time, the engine and other components will produce a lot of heat, the interior temperature is high, the speaker should be able to maintain stable performance at a high temperature, will not be due to overheating and distortion, damage and other problems. Portable and easy to install: Easy to install and disassemble, so that users can use it on different UTV models, or repair and replace it when needed.  

Click here for product details   The motorcycle GPS navigation screen has the following features and related information: Size: Screen sizes are varied, common 4.3 inches, 5 inches, 5.5 inches, 6 inches, 7 inches and so on. Small size screen: such as 4.3 inches, the advantage is that the device is small and portable, easy to install on the motorcycle, and has less impact on the overall appearance and handling of the motorcycle; The disadvantage is that the display content is limited, the operation buttons and map details may be relatively small, and it is not convenient to view and operate during the riding. Large screen size: such as 7 inches, can provide a wider field of view and clearer map display, more convenient operation, easier to see the navigation route and related information; However, the fuselage is large, the installation location choice is relatively limited, may require a larger installation space, and may be more likely to reflect light in the sun, affecting visibility. Medium size screen: like 5 inch and 6 inch screen, it has a good balance in display effect and operation convenience, which can provide a clearer map and enough information display, but not too large to affect installation and use. Display technology: TFT LCD touch screen: This is a more common screen type, with high resolution and color reproduction, can clearly display maps, ICONS and text and other information. The touch operation is convenient for the rider to quickly perform various Settings and operations during the ride, such as entering the destination, zooming the map, and switching the view mode. High definition high brightness screen: In order to have better visibility under strong light, many motorcycle GPS navigation screens use high definition high brightness technology to improve the brightness and contrast of the screen, so that the rider can still see the screen content clearly in direct sunlight. Anti-reflective treatment: part of the screen has been specially treated to reduce reflective phenomena, reduce the interference of external light on the screen display effect, and ensure that it can maintain good readability under various lighting conditions. Resolution: Resolution determines the clarity of the screen image, and higher resolution screens can display finer map details, clearer text and ICONS. The common screen resolution is 800×480. Viewing Angle: It has a wide viewing Angle to ensure that the rider can clearly see the screen content in different riding positions and angles. Whether it is directly in front or slightly tilted Angle, it can maintain a good display effect, and it is convenient for the rider to view navigation information at any time without deliberately adjusting the Angle of view.  

Click this link for product details   The following are some points for the purchase of Marine Stereo: Environmental adaptability Waterproof and moisture-proof: Marine audio needs to have good waterproof performance, generally speaking, at least to reach IP65 or IP66 grade, to ensure that in wet Marine environment, such as waves splashing, rain washing and even short-term immersion in water can still work properly. For example, the Garmin Fusion EL series of Marine loudspeakers is waterproof and dust-proof to IP65 and has passed high specifications for salt spray and UV resistance. Uv resistance: long-term exposure to the sun, the housing and components of the sound are easy to age, fade and damage, so choose products with strong UV resistance, which can ensure that the sound can still maintain good appearance and performance after long-term use. Corrosion resistance: seawater is highly corrosive, and the metal parts of Marine audio should be made of corrosion-resistant materials, such as stainless steel, Marine grade aluminum alloy, etc., or special anti-corrosion treatment to prevent rust and corrosion and extend the service life of the audio. Sound quality representation Power and volume: According to the size of the boat and the use of the environment to choose the right power of sound. Generally small boats can use less powerful sound to meet the needs, while large yachts or boats used in open water may need more powerful sound to ensure that adequate volume can be provided in noisy environments. For example, the Fusion Signature Series 3i suspension speaker, a 6.5-inch tower speaker with peak power of up to 230 watts and an RMS rating of 75 watts, provides excellent sound while the boat is taxiing. Frequency response: A wide frequency response range can make the sound better restore the details of the music and rich timbre, generally should choose the frequency response of about 40Hz-20kHz products, so as to ensure that the bass is deep, the treble is bright, and the sound is more full and natural. Sound clarity: Choose a sound with clear sound quality and low distortion so that you can enjoy high quality music even in the Marine environment. You can learn about the sound quality of your audio by viewing product reviews, listening, or consulting with other users. For example, the Garmin Fusion Signature Series 3i suspension speakers with CURV® sound basin technology provide increased sound clarity and volume.   Installation mode Type: There are many ways to install Marine audio, such as embedded, surface mounted, suspended and so on. Built-in installation allows the sound to be integrated into the ship's body, beautiful and space-saving, but it needs to be installed when the ship is built or refit; Surface installation is more flexible, suitable for all kinds of ships, easy to install fast; Suspension mounting is usually used in situations where audio needs to be installed at a high altitude, such as on the mast of a sailing boat or on the flybridge of a yacht, for better sound transmission. Compatibility: Ensure that the mounting size and fixing method of the speaker match the structure of the vessel, while taking into account the installation location is convenient for wiring and connecting the power supply. If you install it yourself, choose a product with simple installation and complete accessories, and install it correctly according to the instructions. Functionality and connectivity Bluetooth function: Marine audio with Bluetooth function can be easily connected with smart devices such as mobile phones and tablets to achieve wireless music playback, so that users can play their favorite music anytime and anywhere. For example, the Fusion APOLLO RA770 is the world's first touchscreen Marine stereo with Apple AirPlay 2 software capabilities and built-in Wi-Fi connectivity, while also supporting Bluetooth connectivity. Other features: Some Marine audio may also have other practical features, such as AM/FM radio function, USB interface, AUX input, RGB lighting effects, etc. You can choose the audio with the corresponding function according to your personal needs and preferences. Compatibility: If you plan to integrate Marine audio with other Marine electronic equipment, such as Marine radios, chart charts, etc., ensure compatibility between them to achieve a better system to work together. How to judge the waterproof performance of Marine audio?   The waterproof performance of Marine audio can be judged from the following aspects: View product logo Waterproof grade standard: In the IP code of the International Protection Class Standard, the second digit indicates the waterproof level, such as IPX4 can prevent splashing, IPX5 can prevent spraying, IPX6 can prevent strong water impact, IPX7 can soak in 1 meter deep water for 30 minutes, IPX8 can soak in water more than 1 meter deep, the specific duration is usually explained by the manufacturer. Check the product manual or label to confirm the water resistance level. Certification standards: If the audio has passed the waterproof certification standards of relevant Marine electronic equipment, such as the certification of ABYC (American Boating Association), ISO and other organizations, it can also prove its good waterproof performance to a certain extent. Observe product design and materials Shell material: High-quality Marine audio shell usually uses high-strength, corrosion-resistant, anti-ultraviolet materials, such as Marine grade aluminum alloy, stainless steel, high-quality plastic, etc., these materials can effectively resist the erosion of seawater and sunlight exposure. Seal design: Good seal is the key to waterproof, check the sound joints, keys, interfaces, speaker grille and other parts of the seal ring, waterproof gasket and other sealing measures, and the quality of the seal is good, no obvious defects and signs of aging. For example, some speakers in the battery cover, audio interface and other parts are sealed with rubber seals.   Refer to user reviews and professional reviews User evaluation: You can view other users' evaluation and use feedback on the waterproof performance of the Marine audio in the e-commerce platform, Marine equipment forum, social media and other places to understand its performance in actual use. Professional evaluation: Consult professional Marine equipment evaluation magazines, websites or videos, professional reviewers will usually strictly test and evaluate the waterproof performance of the audio, and give objective evaluation and recommendations. Perform a simple test Water spray test: Use a sprayer to spray the sound, simulate the tilt Angle of rain in the actual use environment, continue spraying for 5-10 minutes, and observe the operation of the sound, including whether there is abnormal sound, key failure, water appearance and other phenomena. Immersion test: For stereos labeled IPX7 or higher, a short immersion test can be performed. Put the audio in water, make sure that the depth of immersion does not exceed its marked safe depth, the time is controlled within 30 minutes, after soaking, take out to check the appearance and sound quality. Wet environment test: the stereo is placed in a humid environment, such as a bathroom or a wet basement, to observe its performance under high humidity conditions, the time is recommended to control within a few hours, to see whether there are moisture, short circuit, sound quality changes and other problems.

GRANDnavi Company would like to congratulate friends around the world, merry Christmas, happy every day, may the world peace!

Here are some of the trends in the Android market: Technical aspect Hardware performance improvement: With the increasing demand for automotive intelligence, the hardware performance of Android cars will continue to improve. For example, processors will be more powerful and able to support more complex software and applications. Memory and storage capacity will also continue to increase to meet the needs of users for multitasking and mass data storage. Display technology innovation: In-vehicle display technology is evolving rapidly, from traditional mechanical dashboards to full LCD displays to more advanced and diverse screen technologies. Such as the large special-shaped in-car integrated display, intelligent transparent OLED touch screen, etc., will be more and more applied to the car, providing users with a clearer and richer visual experience. Intelligent driving function integration: With the openness of the Android system and strong ecological support, more and more intelligent driving functions will be integrated into the Android car. ADAS functions such as automatic parking, lane keeping, and traffic warning will continue to be upgraded and improved to provide users with a safer and more convenient driving experience. Software and applications Application ecology enrichment: Android car will continue to use Android's huge application ecology to enrich the types of on-board applications. In addition to traditional navigation, music, radio and other applications, video conferencing, online office, games and other applications will gradually become popular to meet the diversified needs of users in the car. Personalized user experience: The future Android car will support more personalized Settings, users can customize the car's interface layout, theme style, application arrangement, etc., according to their preferences, to create a unique driving environment. Software update and iteration acceleration: In order to maintain the stability and security of the system, as well as provide a better user experience, the software update and iteration speed of Android Car will be accelerated. Automakers and software developers will pay more attention to user feedback, timely bug fixes and optimized features. Market and industry Market size continues to grow: With the development of new energy vehicles and intelligent driving vehicles, the demand for in-vehicle displays has increased significantly. From January to November 2023, the total number of standard displays of various sizes for passenger cars in the Chinese market reached 31.063,800, an increase of 21.22%. In the next few years, the Android car market will continue to grow. Industry competition intensifies: automobile manufacturers, technology companies, Internet companies, etc., have been involved in the Android car market, and the market competition will become increasingly fierce. In order to stand out in the competition, enterprises will continue to increase research and development investment, improve product quality and service level. Coordinated development of the industrial chain: The development of the Android market will drive the coordinated development of the entire industrial chain, including chip manufacturers, display manufacturers, software developers, content providers, etc. All parties will strengthen cooperation to jointly promote the innovation of Android car technology and the prosperity of the market. Security and privacy Enhanced security performance: Car manufacturers and software developers will pay more attention to the security performance of Android cars, and take a variety of security measures, such as encrypted communication, identity authentication, vulnerability repair, etc., to prevent vehicles from being hacked and user information leaks. Enhanced privacy protection: With the increasing concern of users about privacy protection, Android car will strengthen the protection of user privacy. For example, when user data is collected and used, users will be more clearly informed of the purpose of the data and their consent will be obtained.