Retevis RB20 Manuel D'utilisation page 6

PTT Push to talk
press the button then
speak to the mic
Side key one
long press for Group
Select
Side key two
short press for Member
Select, long press to
active SOS function
Introduction
Volume selector/ON/OFF switch Long press volume button to switch ON/OFF the radio.
Clockwise for volume UP, counter clockwise for volume DOWN.
Push To Talk (PTT) button
When the device is standing by (Green light will flashing slowly), press PTT button to initiate a call (red light will go
on) During the call, the green light will go on to show successful reception. If not in reception, hold PTT to apply for
turn to talk (red light will go on) Release the PTT to end call and go back to standing by.
Indicator light status
The green light goes on after the device is switched on. The green light flashes fast to indicate network
searching. In standby mode, the green light flashes every five seconds. The green light remains on for reception,
and the red light remains on for transmission.
Basic use
Switch ON
Long press volume button to switch ON the radio, there will then be a voice prompt. After the radio is successfully
switched on, the green light goes on first then flashes to indicate network searching. After the network is
connected, there will be a voice prompt.
Switch OFF
Long press volume button to switch OFF the radio, the light will turn off.
Note: Do not frequently switch between ON and OFF, it may affect the switch function.
Volume adjustment
Revolve clockwise for volume UP and counter clockwise for volume DOWN.
4
Belt Clip
MIC/SP
MIC/SP Sock, plug in
speaker/ Microphone
Battery