OTS-20 User’s Manual
（
4
）
Press
“
CANCEL
”
key to return to the upper menu or cancel an
operation.
（
5
）
Press
“
B_LIGHT
”
key to on/off the background light or change the
background light color.
（
6
）
Press
“↓↑”
key to browse the main menu.
（
7
）
Press
“
ON/OFF
”
key to turn on/off the equipment. The equipment will
automatically shutdown, after 10 minutes of idle time.
（
8
）
DC Port
Power source adapter connection, when battery indicator light up
on the LCD screen, please charge the equipment.
(9) MIC Port
It is used to insert the microphone.
（
10
）
PHONE Port
Connects with PHONE to establish a conversation.
5
