User's Manual

Long press Power knob + Ok button + Exit button: enter Firmware Update
Mode, the screen will be blank, then connect with the programming cable.
Must plug in the adaptor to restart the device successfully in update mode.
Long press Power knob + Ok button: GPS test
Long press Power knob + Exit button: Factory reset
Long press Power knob + Up button: Network test
Long press Power knob + Down button: enter programming mode, then
connect with the programming cable.
Menu Function
1. Group
Press the menu button on the standby interface, select the group selection,
press the up and down keys to select, press the menu key to confirm the
selected group, and press exit key to return to the upper option.
2. Member
Press the menu button on the standby interface, select the member
selection, press the up and down keys to select, press the menu key to
confirm the selected member, and press exit key to return to the upper
option.
3. Friend
Press the menu button on the standby interface, select the friend selection,
press the up and down keys to select, press the menu key to confirm the
selected friend, and press exit key to return to the upper option.
4. Set
Press the menu button on the standby interface, select the set selection,
press the up and down keys to select different functions.
1) Tx&Rx Beep: set Tx beep, Rx beep and off
2) Audio Quality: Set standard sound quality or high-definition sound quality,
different sound quality cannot talk to each other normally
3) BackLight: Set the length of time that the backlight will automatically turn off
when there is no operation or intercom:5 seconds, 10 seconds, 15 seconds,
30 seconds, 60 seconds, 120 seconds, never off, off
4) StandbyDisplay：Set <display time> or <screen off> in standby
5) Online LED: Turn on this function, the breathing light will flash when the
account is logged in.
6) LCD Contrast: Set the contrast of the LCD to level 0, level 1, level 2, level 3
7) SingleCallTime: Set the time to automatically exit single call/group call
when there is no intercom: off, 30 seconds, 60 seconds, 90 seconds, 120
seconds, 150 seconds, 180 seconds, 210 seconds, 240 seconds, 270
seconds
8) Menu Hang: Set the time for automatically returning from the menu to the