I. Main features 1. Decoding supports MP3, WMA, WAV, FLAC, APE lossless format music; 2. LCD screen display, lyrics display synchronously; 3. Support Bluetooth-compatible call function, Bluetooth-compatible version 5.0; 4. Support recording function; 5. Support SD interface; 6. Support USB interface U disk; 7. Power-off memory function; 8. Support infrared remote control operation at a distance of 10 meters; 9. Support external audio source input LINE IN; 10. Support radio FM, search frequency band 87.5MHZ-108.0MHZ; 11. Buttons: six-button multi-directional control, REC / REPEAT / VOL- / AUTO / VOL / MODE; II. Key operation description 1. IR: infrared receiving module; 2, MIC: support call and recording functions; 3, USB interface: connect U disk maximum support 32GB; 4. LCD screen: synchronous display of lyrics; 5. SD card slot: connect SD memory card maximum support 32GB; 6. AUX interface: audio input interface; 7. Volume knob: control the volume; 8. REC: Press and hold 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; 9. REPEAT: Press the single cycle function once, press it again to cancel the single cycle, and play it in order; 10. PREV/: Short press to choose the previous song; long press to rewind; 11. PLAY/PAUSE: Short press is to switch between pause and play; long press is to radio FM automatic station; 12. NEXT: short press to choose the next song; long press to fast forward; 13. MODE: switch between USB / TF / FM / AUX / Bluetooth-compatible; III. Description of the recording function When recording, you need to connect a storage device, such as: U disk or TF card IV.Specifications: JQ-D006BT Specifications Main control IC: AC6921 Bluetooth-compatible IC: AC6921 Bluetooth-compatible version is 5.0 Music format: MP3/WMA/WAV/FLAC/APE lossless format Bluetooth-compatible calling function recording function Folder switching function Radio FM frequency: 87.5—107.5 MHZ Support function introduction: support MP3 / USB / TF / LINE IN / FM / Bluetooth-compatible / remote control connection / DC 12V About the structure: Panel size: length 112 * width 62MM, the panel is surrounded by screw holes, the depth of the panel is 22MM Package List: 1 * Decoder 1 * Remote Control without battery 4 * Cables