I. Main features 1. Dual decoding supports MP3, WMA, WAV, FLAC, APE lossless format music; 2. The power amplifier is 2*40W, and 2 40W speakers can be connected at the same time; 3. The voltage range is 7V-25V, and the current is not less than 2A 4. Support Bluetooth-compatible call function, Bluetooth-compatible version 5.0; 5. Support recording function; 6. Digital color 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: six-button multi-directional control, REC / REPEAT / VOL- / AUTO / VOL+ / MODE; II. Key operation description 1. REC: Long press the REC button to start recording, then long press the REC button 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; 2. REPEAT: Press the single cycle function once, press it again to cancel the single cycle, and play it in order; 3. PREV button (previous song): in MP3 state, VOL-short press is the previous song, and long press is the volume reduction; in FM state, short press is to increase a station number; in the bluetooth-compatible function, short press is bluetooth-compatible previous piece. 4. AUTO button (play/pause): in MP3 state, short press AUTO to play/pause; in FM state, short press to play/pause, long press to automatically close and save the station; short press to play in bluetooth-compatible function /pause. 5. NEXT button (next song): in MP3 state, short press VOL+ for the next song, long press for volume increase; in FM state, short press for down one station number; in bluetooth-compatible function, short press for bluetooth-compatible down a song. 6. MODE button: switch between USB / SD card / FM / audio input / Bluetooth-compatible function in turn. III. Description of the recording function 1. Long press the MODE button to start recording, long press the MODE button again to cancel the recording and play the recorded file; 2. When recording, it is necessary to connect a storage device, such as: U disk or TF card. IV.Specifications: Model: JQ-D009BT Main control IC: Zhongke Nanxun AB5362B Bluetooth-compatible IC: Zhongke Nanxun AB5362B Bluetooth-compatible version 5.0 Music format: MP3/WMA/WAV/FLAC/APE lossless format music Radio FM frequency: 87.5108.0 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 includes: 1 * Decoder 1 * Remote Control (without battery) 3 * Cables