User Manual

2
2. BTH-818 appearance and pushbutton descriptions:
2.1 Pushbutton descriptions
Figure 1
Switch key
Pickup and hang-up key
Volume increasing key
Volume decreasing key
Earphone switch operating key, identical to key in operating
function.
2.2 Outer connecting operation
Insert the outer connecting earphone from headset input plughole. There is a key in
the earphone line with operating function identical to key. Refer to Figure 2 and
Figure 3.