Play/Pause:
Click button A to play/pause music.
Volume up/down:
Click button B/C to turn up/down the volume
Switch songs:
Hold the button B/C to switch to the previous/next song.
Sound effect: Double click button A to turn on/off the sound effect
Answer phone call: Click button A when there's an incoming call.
End calling: Click button A during a phone call.
Reject phone call: Hold the button A when there's an incoming call.
Cancel a call: Click the button A to cancel when an outgoing call is not answered.
Indicator Display
Power on/off: Blue light flashes for three times.
Power on without connection: Blue light flashes twice every two seconds
Pairing mode: Red and blue lights flash alternately.
Device connected: Blue light flashes once every 2.5 seconds.
Low battery warning: Red light is steadily on while Blue light flashes to indicate the
current working status.
Charging: Red light is steadily on after connected while Blue light flashes to indicate
the current working status.
Charging completed: Red light lights off while Blue light still flashes to indicate the
current working status.
Sound effect: Green light lights up when sound effect is on, and lights off when sound
effect is off.
