3
• *Audio Output Level:
Press ‘Mode’
button again, ‘UL’ will flash on the LCD.
Select either ‘Ul’ (Audio Output Low)
or ‘UH’ (Audio Output High). Useful for
when you are operating in a high-noise
area.
• Press and hold the ‘Mode’ and ‘Talk’
buttons simultaneously for 7 seconds
to lock all buttons except the volume
control.
1.3 How to setup other handsets in
Listen-Only mode (RX Only)
• Turn on a handset from the numbers
5-34
• Press and hold the ‘Mode’ button until
‘GRP’ flashes on the LCD and select the
desired group number (0-39), via the
volume control buttons.
• Press the ‘Mode’ button again and
use the volume buttons to set the ID
between 5 to 34, the ‘TALK’ symbols
will appear on the LCD. Do NOT use the
ID 00.
• *Side Tone:
Press ‘Mode’ button again,
‘SO’ will flash on the LCD. Select either
‘SO’ (Side Tone On) or ‘SF’ (Side Tone
Off) via the volume buttons. The Side
Tone is where you can hear your own
voice in the headset.
• IMPORTANT Transmit Mode:
Press
‘Mode’ button again, ‘PO’ will flash on
the LCD. Select ‘PF’ Receive Only (RX).
• *Microphone Sensitivity:
Press
‘Mode’ button again, ‘C3’ will flash on
the LCD. Use the volume buttons to
select the desired sensitivity level.
• *Audio Output Level:
Press ‘Mode’
button again, ‘UL’ will flash on the LCD.
Select either ‘UL’ (Audio Output Low)
or ‘UH’ (Audio Output High). Useful for
when you are operating in a high-noise
area.
• Press and hold the ‘Mode’ and ‘Talk’
buttons simultaneously for 7 seconds
to lock all buttons except the volume
control.
*Optional settings
2 Range
All handsets must be within 400m Line-
of-Sight (LoS) of the ‘MASTER’. When
a handset goes out of range of the
‘MASTER’ an audible BEEP will sound
within the headset and the ‘SIGNAL’
symbol on the LCD screen will have no
bars.
3 Charging and Battery
IMPORTANT:
Make sure the handset is
turned OFF before charging, not doing
so will significantly reduce the life of the
battery.
• Plug the USB charging cable into the
USB socket on the side of the handset
• Connect cable to charger and attached
to mains power.
• The red LED in top right hand side of
the handset will come on, the red LED
will go off once the handset is charged
The handset contains a non-removeable,
rechargeable 3.7V, 1100mA Li-Ion battery.
