User's Manual

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15. Display back light
To activate the backlight of the LCD display, press any button.
The LCD backlight will light up for 5 seconds.
16.Earpiece connection
The Twintalker can be used with the included earpiece.
The connector is located on the top of the device.
Insert the earpiece plug into the connector (2.5mm jack).
The small button on the earpiece has the same function as the TALK-button
(15) on the unit.
When you use the microphone from the earpiece to talk into.
Note: Do not connect other earpieces. This may damage your device.
17.Battery saving function:
When the device has not been used for 6 seconds, the economy mode is
automatically activated. This does not affect the reception of transmissions
and the standard mode is automatically reactivated as soon as a signal is
detected.