Crunch 2160 Operation Manual page 21

b. Dim Button
Dim Mode reduces the illumination of the display. You
can adjust the brightness of the LED display. There are
four variants of brightness, choose which you prefer:
Bright – Dim – Dimmer - Dark (display is off)
It's rather convenient at night (when the display
brightness might be dimmed in order to prevent eyes
weariness) as well as in daytime (when it's necessary to
increase the brightness).
Note: It's impossible to switch off the light and voice
announcements simultaneously. If you switch off the light
announcements, the voice announcements switch on.
If you want to turn on/off the voice announcements push
and hold Dim button for 3 seconds.
c. Mute Button
Silence the audio alarm.
To change the tone of voice announcements push and
hold Mute button for 3 seconds.
d. City Button
Press the City button to help reduce false alarms while
driving in the city. While driving on the highways or rural,
press the City button again to turn off the City Mode for
long-range detection.
To turn on/off the City Mode push City button. The
indicator "C" will blink on the monitor.
e. DC12V Power Input
Connect the DC Power cord here.
f. Rear Laser Antenna
An integrated optical waveguide provides superior
detection of laser signals transmitted from behind (X-, K-,
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