1, USB interface: connect the U disk (maximum support 32GB);.

2, LED screen: digital displayi

3、MIC:support call and recording function;

4、IR:Infrared receiving module;

5、VOL+/VOL-:Rotate the volume up to the right, rotate the volume down to the left;

6,MODE: switch between USB /TF /FM /AUX / BT;

7, REC: long press the REC button to start recording, press the REC button again to cancel the recording function and play the recording file; recording than need to connect a storage device such as: U disk or TF card;

8,PLAY/PAUSE: short press is to pause and play the switch; long press is radio FM automatic station;

9, microphone interface;

10, TF card slot: connect TF memory card (maximum support 32GB);

11, AUX interface: audio input interface.

12、NEXT:Short press is to select the next song; long press is to fast forward; double click to switch to the next folder;

13, PREV: short press is to select the previous song; long press is fast back; double click to switch the next folder;