Key function
1 1-8 Channel select 1-8; Numeric key
2
9、0
Numeric key; Clicking numeric “0” allow you
switch to output device
3 ALL Multiple display mode
4 Menu Enter into Main menu/Exit
5 ▲ Up arrow key, Volume adjust
6 ▼ Down arrow key, Volume adjust
7
◄/
Left/Down key,
Decrease/increase parameter value of control bar