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Important safety information
Columbus 3
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S1 DIGITAL
Important safety information
Please read this instruction manual carefully and completely before
using the product.
Make this instruction manual easily accessible to all users at all times.
Always include this instruction manual when passing the product on to
Manual
third parties.
This instruction manual is also available on the Internet at www.sen-
nheiser-aviation.com or www.sennheiser.com.
Preventing health problems
If during flight operation you, as the pilot, operate your connected
®
Bluetooth
device using the headset, this can limit your attention. Dur-
ing flight operation, do not use the headset for telephone calls.
With the NoiseGard
aircraft sounds (for example, those from engines, propellers, warning
alarms, etc.) may sound different to you. Before operating any aircraft,
make sure that, with NoiseGard
recognize these sounds. Set the volume to safe levels that do not inter-
fere with your ability to hear informational sounds and warning alarms.
The product is capable of producing sound pressure exceeding 85
dB(A). In many countries 85 dB(A) is the maximum legally permissible
level for continuous noise exposure during the working day. Exposure
to sounds of higher volume levels or for longer durations can perma-
nently damage your hearing.
Preventing damage to the product
Never repair or attempt to repair a defective product yourself. Contact
your Sennheiser partner or the Sennheiser Service Department.
Only replace parts of the product whose replacement is described in
this instruction manual. All other parts of the product must be replaced
by your Sennheiser partner.
Protect the product from humidity. Only use a slightly damp cloth to
clean the product. For information on how to clean the product, contact
your Sennheiser partner.
Only use the product in environments where wireless Bluetooth trans-
mission is permitted.
Information on active and passive noise attenuation
The S1 DIGITAL is a headset with digital adaptive noise compensation. As
with any complex electronic device, it is possible for the electronics of the
headset to fail during operation.
However, the S1 DIGITAL is designed to reduce the effects of such failures
and to allow for continued use of NoiseGard
is active when the headset is switched on and the Power LED
Switch the headset off if you experience loud tones, distortion, or loss
of communications. You can then continue to use the S1 DIGITAL as a
passive noise attenuation headset.
TM
/digital noise compensation switched on, typical
TM
/digital switched on, you can hear and
TM
/digital. NoiseGard
TM
/digital
H
lights up.
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