Geemarc CLA-30/40 Notice D'utilisation page 9

SETTINGS
Note: The CLA-30/40 cannot be used with telephones which have a keypad on
the handset.
3 - VOLUME CONTROL
You can adjust the volume control level by using the "VOLUME" control slide
switch located on the top. Volume can be adjusted from the same level you have
with your phone up to 30 dB or more.
4 - TONE CONTROL
You can adjust the tone by using the 5 position "TONE" switch located on the
top.The tone can be adjusted by 5 dB step with regard of the 0dB middle point
for the bass and treble. Possible settings are -10dB, -5dB, 0dB for the bass and
0dB, -5dB, -10dB for the treble, this can be adjusted at the min and max volume
level.
5 - BOOST SWITCH (CLA-40 ONLY)
If you wish you can increase the receiving up to 10 dB more by pressing and
holding the Boost switch button. During this operation the microphone is muted
to avoid feedback problems. To speak release the button so that the people can
hear you.
6 - BATTERY INDICATOR
Each time you use your phone with the amplifier, the battery LED indicator will
light to show that the battery is full. If the LED does not light, the battery must be
changed.
IMPORTANT:Always disconnect CLA-30/40 from the phone before replacing
the battery.
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