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2
•
Only replace those parts of the headset whose
replacement is described in this instruction manual.
All other parts of the headset must be replaced by
your Sennheiser agent.
•
Protect the headset from humidity. Use only a slightly
damp cloth to clean the headset. For information on
how to clean the headset, contact your Sennheiser
agent.
Intended use of the headset
Intended use includes:
•
having read this instruction manual especially the
chapter “Safety instructions”.
•
using the headset in aircraft cockpits and within the
operating conditions as described in this instruction
manual.
Improper use
Improper use means using the headset other than as
described in this instruction manual, or under operating
conditions which differ from those described herein.