Product Introduction:
1.Call Function
2.5V Power Supply:max drive double 4 ohm 3W
3.6.5V Power Supply:max drive double 4 ohm 5W
4.VCC and GND are power supply pin;IN and IP connect with left loudspeaker;RN and RP connect with right loudspeaker
5.COM is common port of the key,the other side of the key connect VOL+,VOL-,PREV,NEXT,PLY respectively
6.M+ and M- connect with microphone positive and negative respectively.
 

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(The language in the video is English)