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 or WMA or WAV or FLAC or APE lossless format About the structure: Panel size: 112 x 62 MM (LxW) 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 or USB or TF or LINE IN or FM or BLUETOOTH or 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. FDand: Short key is to switch to the next folder, long press is fast forward 13. PLAY or 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 or TF or FM or AUX or BLUETOOTH The package includes: 1x Bluetooth MP3 decoder board 1x large remote 1x wire set 1x manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.