Bluetooth version 5.0 Recording microphone function Music format: MP3/WMA/WAV/FLAC/APE lossless music format Radio FM frequency: 87.5—108 MHZ Folder switching function Function: support MP3/USB/TF/LINEIN/FM/Bluetooth/remote control /DC 12V About structure: Panel size: length 75 * width 50 MM, screw holes around the panel, and the depth of the panel is 23 mm.
Keys and interface functions1. PLAY/PAUSE: short press is the switch between pause and play; Long press is FM automatic radio station; 2. PREV/VOL-: Short press is to select the previous song; Press long to decrease the volume; Double click to switch to the previous folder; 3. NEXT/VOL+: Short press is to select the next song; Press long to increase the volume; Double click to switch to the next folder; 4. LED: Digital screen display, showing red. 5. REPEAT: Press once for single loop, and then press once to cancel single loop. 6. EQ: Sound field mode, testing 6 kinds of sound quality; (Classical) (Jazz) (Rock) (Bass) (Pop) (Normal) 7. Mode: Switch between USB/TF/FM/LINE IN/Bluetooth 8. AUX: Audio input interface 9. IR: infrared receiving module 10. TF: Connect TF memory card (maximum support is 32GB)