[PTT]：When transmitting, press this button and speak to the microphone; release
the button to receive.
[ < ] DOWN Button: Press this key for decrement of channel; long press this key for
fast decrement of channel.
[ > ] UP Button:
Press this key for increment of channel; long press this key for
fast increment of channel.
Note:
①."<" and ">" are presses for more than 2 seconds to enter channel scanning.
②. Press and hold the PTT+ "<" button and turn on radio. Switch between Chinese
and English.
③.Press and hold PTT+ ">" button to transmit DTMF(1750HZ, 1450HZ, 2100HZ) by default
to 1750HZ，It can be set by the write frequency software (edit → optional function
→ DTMF).
④.
Side Key 1：Press the key to turn on or off the SOS function, long press this
key for monitor function.
⑤. Side Key 2: Press the key to turn on flashlight;
long press this key for keypad
lock.
2. LED icon and function description
1.CT（CTCSS）：When the screen displays this symbol, it represents the current channel
for CTCSS receive and transmit.
2.DCS（CDCSS）：When the screen displays this symbol, it represents the current channel
for CDCSS receive and transmit.
3.VOX ：When the screen displays this symbol, it represents the VOX function of the
turn on.
4. (Key lock)：When the screen displays this symbol, it represents the keyboard
is locked and cannot be switched up and down; except for PTT key and MONI key.
5.TX: When the screen displays this symbol, it represents is in the transmitting
state, and the signal strength icon is display same time.
6.RX: When the screen displays this symbol, it represents is in the receiving state,
and the signal strength icon is display same time.
7. Signal strength icon.
8. Battery level and Charging indicator：The icon represents the current battery
level. When charging, the battery level jumps back and forth from 1 grid to 3 grids.
