User's Manual

Component Names and Functions
7
Z
button
↟ Press to end the phone call during a call.
↟ Press to reject the call in the incoming call screen.
↟ Press to end Voice memo recording.
J
/
I
button
↟ Increases or decreases the volume level.
d
(Mute)
↟ Press to mute the sound. (It will be paused in some media modes.)