1. Dual decoding supports MP3, WMA, WAV, FLAC, APE lossless format music;2. The power amplifier is 2*40W, and two 40W speakers can be connected at the same time;3. The voltage range is 7V-25V, and the current is not lower than 2A 4. Support Bluetooth call function, Bluetooth version 5.0;5. Support recording function;6. Digital color screen display; 7. Support MMC/SD/ and other cards, support USB interface (U disk);8. Power-off memory function;9. Support infrared remote control operation at a distance of 10 meters; 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; Button operation: 1. REC: Long press the REC button to start recording, and then long press the REC button to cancel the recording function and play the recording file; when recording, it is necessary to connect a storage device; 2. REPEAT: Press once to repeat the single song, press again to cancel the single repeat, and play in order; 3. PREV button (previous song): In MP3 state, VOL- short press is the previous song, and long press is for volume reduction; in FM state, short press is to increase a station number; in Bluetooth function, short press is Bluetooth 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 stations; under Bluetooth function, short press to play /pause. 5. NEXT button (next song): In MP3 state, VOL+ short press is song, and long press is for volume increase; in FM state, short press is to adjust down a channel number; in Bluetooth function, short press is for Bluetooth down a song. 6. MODE button: switch between USB/SD card/FM/audio input / Bluetooth function in sequence. Colour:black Material:Plastic + Electronic Components <b