Start：Long press for 3 seconds
Shut down：Long press for 4 seconds
Play / Pause：
Short touch button (less than 1s)
Previous piece:
Left ear touch button long press (greater than 1s, less than 2s)
Next track:
Right ear touch button long press (greater than 1s, less than 2s)
Add volume:
Double click on the right ear touch button
Reduce volume: Double click on the left ear touch button
Answer:
Short touch button (less than 1s)
Hang up:
Short touch button (less than 1s)
Refuse to call:
Touch key double click
Cancel call:
Short touch button (less than 1s)
Start Siri:
Triple click on any headset touch button
Turn off Siri:
Triple click on any headset touch button
