Supports radio/Bluetooth/USB/TF/MP3/AUX/microphone inputSupports LED displaySupports MP3 songs from 32~320kbpsSupports power-off memory function/folder function/internal recording function (software can be customized according to customer needs)Supports 6 sound effects (Jazz/Pop/Classic/Normal/Country/Rock) and additional features such as infrared remote control, FAT16 and FAT32 file systems, and decoding of all MP3/FLAC versions of songs.1. Power Supply: DC12-15V/4A 2. Audio Output ≥530mA 3. Signal-to-noise ratio ≥70dB 4. Frequency response: 80Hz~15KHz 5. Distortion ≤0.2% 6. Separation ≥45dB 7. Storage temperature: -20°C~50°C 8. Radio frequency range: 87.5~108MHz (adjustable radio band) 9. FM fully automatic search sensitivity: 25~30dB 10. Output power: 2*25W@4Ω 11. Accessories: Remote control *1pcs, 2P power cord *1pcs, 2P speaker cable *2pcs, 4P external speaker input cable 12. Supports customized casing/product development and design.Color: BlackMaterial: plasticPackage Contents:1*Car Amplifier Board1*Remote ControlOnly 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.