Remote control unit
Mute button ( 
)
This mutes the output audio.
Quick Select buttons (1 – 6)
These call up settings registered to each button, such as input source, volume level and sound mode settings. link
Volume up/down buttons (+, -)
These adjusts the volume level.
Power button ( 
)
This toggles the power mode of this unit.
System buttons
These perform playback related operations.
Reverse-skip / Forward-skip buttons ( 
, 
)
Play/pause button ( 
/ 
)