The main function 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. Support Bluetooth call function, Bluetooth version 5.0; 4. Support recording function; 5. Digital color screen display; 6. Support MMC/SD/MMA and other cards, 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: Four-button multi-directional control, REC / REPEAT / VOL- / AUTO / VOL+ / MODE; Key operation instructions 1. REC: Press the REC button to start recording, press the REC button again to cancel the recording function and play the recording file; when recording, it is necessary to connect a storage device, such as U disk or TF card; 2. REPEAT: Press the single loop function once, press it again to cancel the single loop, and play it in sequence; 3. VOL-button (previous song/volume down): in MP3 state, VOL-short press is the previous song, long press is the volume decrease; in FM state, short press is to increase a station number; in Bluetooth Under the function, a short press is the previous song on Bluetooth, and a long press is a volume down. 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 function /pause. 5. VOL+ button (next song/volume up): in MP3 state, short press VOL+ for the next song, long press to increase the volume; in FM state, short press to lower a station number; in the Bluetooth function Short press for the next Bluetooth song, long press for volume down. 6. MODE button: switch between USB / TF / FM / audio input / Bluetooth function in turn. Description of recording function: When recording, a storage device must be connected, such as U disk or TF card; Material: ABS+metal Size: 91*57*20MM Products include: 1*Wireless Bluetooth Decoder Board 1*Remote Control (without battery) 3*Cable 1*Manual