S1
: Short press for previous song , long press for volume increase.
S2
: Short press for next song , long press for volume decrease.
S3
: Play/Pause , switch microphone.
S4
: ON/OFF , pairing , Answer/hang up /reject the call and last number redial.
Ⅱ
.Charging
This product is with built-in rechargeable battery
,
however, this headset
battery is not fully powered. Before you use the headset for the first time, please
charge it at least 4 hours. After that
,
charging would be taken approximately 2-3
hours. When the LED turns red, charging is carried on; whereas the LED red
lights off, charging is completed.