Dörr E-Slim GS-23 Notice D'utilisation page 14

06 | WEARING THE EARMUFF
In order to avoid hearing disorder, make sure that the ear cups are placed fi rmly around your ear chambers. For
best wearing comfort, adjust the metal brackets (4) to the size of your head.
CAUTION:
Wear the earmuff throughout the whole period of noise duration.
•
Should the ear padding start to show cracks, do not use them anymore! After some years of use, the evidence
•
of cracks is a sign of material fatigue, which is considered a natural wear and tear and it is no reason for
complaint
07 | OPERATION
07.1 Inserting/Replacing the batteries
Slide the battery compartment cover (6) upwards and open the battery compartment.
Insert 2 pieces of 1,5V AAA batteries according to the polarity markings +/- into the battery compartment (7).
Close the battery compartment.
Note In case of a drop of performance, disturbances such as upcoming noise, check the battery capacity
and exchange them if necessary.
07.2 Power On/Off & Volume control
To switch the earmuff on, turn the volume control knob (1) in direction
is on and the volume can be adjusted by turning the volume control knob (1).
To switch the earmuff off , turn the volume control knob (1) in direction OFF until you hear a click.
Note Before you take off the earmuff , turn the volume down to minimum level or switch off the earmuff
completely to avoid an acoustic feedback.
07.3 Audio input jack to connect external devices
Use a standard audio cable with 3.5mm plug (optional) to connect the earmuff to an external device (such as a
smartphone, radio, MP3 player). Insert the audio cable into the audio input jack (3) and connect the cable to the
external device.
until you hear a click. Now the earmuff
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