Get Access to Multiple Function

1. Volume up: click the button "+" once.

2. Volume down: click the button "-" once.

3. Next track: press and hold the button "+" for 1-2 seconds.

4. Previous track: press and hold the button "-" for 1-2 seconds.

5. Play or pause: click the middle button once.

6. Answer or end a call: click the middle button once.

7. Reject a call: press and hold the middle button for 1-2 seconds.

8. Redial: press and hold both buttons of "+" and "-" simultaneously for 1-2 seconds.

9. Activate Siri or Google Assistant: double click the middle button.

10. Power on: press and hold the middle button for 1-3 seconds.

11. Power off: press and hold the middle button for 5-7 seconds.