Specification: Model: JQ-D008BT Supply voltage: DC 12V Main control IC: AC 6921 Bluetooth IC: AC 6921 Bluetooth version: 5.0 Radio FM frequency: 87.5—107.5 MHZ Supported music formats: MP3/WMA/WAV/FLAC/APE lossless format About the structure: Panel size: 112 * 62 MM (L*W) Depth of board: 22MM !!Note: without a power amplifier Product Features: 1. Bluetooth music playback 3. Hands-free function for calls 2. Recording function 3. Folder switching function 4. Support MP3 / USB / TF / LINE IN / FM / BLUETOOTH / remote control 1. Description of buttons and interfaces 1. PREV: Twist to the left to select the previous song; NEXT: Twist right to select the next song; 2. IR: infrared receiving module; 3, MIC: support call and recording functions; 4. USB interface: connect U disk (maximum support 32GB); 5. LCD screen: the synchronous display of lyrics; 6. SD card slot: connect SD memory card (maximum support 32GB); 7. AUX interface: audio input interface; 8. Volume knob: control the volume; 9. 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; 10. REPEAT: Press the single loop function once, press it again to cancel the single loop, and play it in sequence; 11. FD-: The short key is to switch to the previous folder, and the long press is to rewind; 12. FD+: Short key is to switch to the next folder, long press is fast forward; 13. PLAY/PAUSE: Short press is to switch between pause and play; the long press is to radio the FM automatic station; 14. MODE: Switch between USB / TF / FM / AUX / BLUETOOTH; The package includes: 1x Bluetooth MP3 decoder board 1x large remote 1x wire set 1x manual