A：Volume + Button
B：Volume - Button
C：Multi-Function Button
D：Microphone

Music	Play	Press Once on Multi-Function Button
	Pause	Press Once on Multi-Function Button
	Next Track	Press Twice on Multi-Function Button
	Previous Track *	Press 3 times on Multi-Function Button
Incoming Call	Answer Call	Press Once on Multi-Function Button
	End Call	Press Once on Multi-Function Button
	Reject Call	Press and Hold on Multi-Function Button
Increase Volume		Press Once on Volume + Button
Decrease Volume		Press Once on Volume - Button

Note: Depending on the connected device, some functions may not work or operations may differ. In such cases, please perform the operation on the connected device. (We do not provide support for how to use your smartphone or other devices.)

Plug in the USB-C plug firmly into the device’s USB-C connector.
Note: Do not insert it into any connector other than a USB-C connector.