What do the buttons do?

(+) Button

• A short press will increase the volume.
• A long press will skip to the next track.
• Press this button to answer YES when Vi asks a yes/no question. 

(-) Button 

• A short press will decrease the volume.
• A long press will skip back a track.
• Press this button to answer NO when Vi asks a yes/no question. 

Middle (Multifunction Button)

• A short press will play/pause music or answer/end calls.
• A long press on the middle button will turn the device on/off.