Feature: 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 premium 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 lightweight, making it easy to transport and use in different environments, while also being high durability and long lasting. Specification: Item Type: MP3 Player Material: Aluminum Alloy, ABS 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 4Ω 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: water and dust proof, high definition Bluetooth, lossless music Suitable models: yachts, construction vehicles, excavators, forklifts, trucks, van and other vehicles. Package List: 1 x Bracket1 x Wire Harness1 x Remote Control1 x Double Sided Adhesive1 x Player1 x Instruction Manual1 x Fused Harness1 x Screw Gasket Accessories (6PCS)