I. Main features 1. Dual decoding supports MP3/WMA/WAV/FLAC/APE lossless format music; 2. Support Bluetooth-compatible function, Bluetooth-compatible version 5.0; 3. Support call function 4. Support recording function; 5. Support folder switching; 6. Color screen digital screen display; 7. Support MMC/SD/MMA and other cards, support USB interface (U disk); 8. Power-off memory function; 9. Support 10 meters distance infrared remote control operation; 10. Support external audio source input LINE IN; 11. Support radio FM, search frequency band (87.5MHZ-108.0MHZ); 12. Buttons: Eight-button multi-directional control, REC / VOL- / REPEAT / VOL+ / PREV / PAUSE / NEXT / MODE; II. Key operation description 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 cycle function once, press it again to cancel the single cycle, and play it in order; 10. VOL+: volume increase; 11. PREV: short press to choose the previous song; long press to rewind, double-click to switch to the previous folder; 12. PLAY/PAUSE: short press is to switch between pause and play; long press is to radio FM automatic station; 13. NEXT: short press to choose 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-compatible; III. Description of the recording function When recording, it is necessary to connect a storage device, such as: U disk or TF card; IV.Specifications: Model: JQ-D010BT Main control IC: Zhongke Nanxun AB5362B Bluetooth-compatible IC: Zhongke Nanxun AB5362B Bluetooth-compatible version 5.0 Bluetooth-compatible calling function Recording function Music format: MP3/WMA/WAV/FLAC/APE lossless format music Radio FM frequency: 87.5107.5 MHZ Folder switching function Support function introduction: support MP3 / USB / TF / LINE IN / FM / Bluetooth-compatible/ remote control connection / DC 12V About the structure: Panel size: length 94 * width 40MM, the panel is surrounded by screw holes, the depth of the panel is 20MM includes: 1 * Decoder 1 * Remote Control (without battery) 4 * Cables