Specification: 2*25W Amplifier DC 7-15V: Model: JQ-D010BT (Power: 2*25W) Bluetooth version 5.0 Power amplifier ICCS8673E, power: 2*25W Support function introduction: support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / remote control connection / DC 7V-15V Function: Music Player/Bluetooth calling function/recording function/Folder switching function Music format: MP3/WMA/WAV/FLAC/APE lossless format music Radio FM frequency: 87.5—107.5 MHZ About the structure: Panel size: length 94 * width 40MM, the panel is surrounded by screw holes, the depth of the panel is 20MM Without Amplifier DC 12V: Model: JQ-D010BT Bluetooth version 5.0 Support function introduction: support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / remote control connection / DC 12V Function: Music Player/Bluetooth calling function/recording function/Folder switching function Music format: MP3/WMA/WAV/FLAC/APE lossless format music Radio FM frequency: 87.5—107.5 MHZ About the structure: Panel size: length 94 * width 40MM, the panel is surrounded by screw holes, the depth of the panel is 20MM Features: 1. Button and interface function 1. Display screen: digital color screen display, showing red; 2. IR: infrared receiving module; 3. AUX interface: audio input interface; 4, MIC: support call and recording function 5. TF card slot: connect SD memory card (maximum support 32GB); 6, USB interface: connect U disk (maximum support 32GB); 7. REC: Long press the REC button to start recording, press the REC button again to cancel the recording function and play the recorded file; when recording, you need to connect a storage device, such as a U disk or TF card; 8. VOL-: volume decrease; 9. REPEAT: Press the single loop function once, press it again to cancel the single loop, and play it in sequence; 10. VOL+: volume increase; 11. PREV: short press to select the previous song; long press to rewind, double-click to switch to the previous folder; 12. PLAY/PAUSE: the short press is to switch between pause and play; the long press is to radio FM automatic station; 13. NEXT: short press to select the next song; long press to fast forward, double click to switch to the next folder; 14. MODE: Switch between USB / TF / FM / AUX / BLUETOOTH; Package Includes: 1 x Bluetooth MP3 decoder board 1 x Remote control(without batteries) 4 x Installation wiring 1 x Manual