1. Bluetooth Connectivity: The device can connect wirelessly to smartphones or other Bluetooth audio devices, allowing for easy audio streaming and playback. 2. Anti Interference: Using digital anti interference radio IC module to make the signal amplify and search for radio stations even in remote mountainous areas. Automatic station search and manual fine tuning mode, automatic storage of FM channels. 3. Easy installation: The player is designed for easy installation in marine vessels, boats, motorcycles, and RVs, making it convenient for users. 4. Digital Stereo: the player supports FLAC high quality lossless format music, ensuring a clear and immersive audio experience. Music downloading is simple and easy, and true surround sound. 5. Compact and Portable: The device is small and , making it easy to transport and use in different environments, while also being highly and long lasting. Specification: Item Type: MP3 Player Material: plastic+metal Color: as shown Battery Model: 1 x CR2025 (shipped with built in battery) Battery Capacity: 300mAh Compatible Format: MP3 IF Range: 10.7MHz Available Sensitivity: 15db Load Impedance: 4 x 4 Signal to noise ratio: 50db Stereo Separation: 30db (1KHz) Tone Adjustment: 8db Audio Output: 2ch&4ch Line Out Maximum Output Level: 1.5Vrms (3db) Frequency Response: 20Hz-20KHz Signal to noise ratio: 60db Separation Degree: 50db Radio Frequency Band: FM 87.5-108MHz, AM 522-1620KHz Features: dustproof and waterproof, high-definition Bluetooth, lossless music Suitable models: yachts, construction vehicles, excavators, forklifts, trucks, van and other vehicles How to use: Yellow wire, red wire to positive, black wire to negative to start. The rest of the harness corresponding tothe harness instructions connected Different batches may have different appearance, which does not affect use. Package Contents: 1 x Bracket 1 x Wire Harness 1 x Remote Control 1 x Player 1 x English Instruction Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.