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Replacement parts
When replacement parts are required, be sure the service technician uses replacement parts
specified by Sennheiser or those having the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric shock, or other hazards.
Danger of hearing damage due to high volumes
This product is also intended for professional use. Commercial use is subject to the safety-at-
work regulations. Sennheiser, as the manufacturer, is therefore obliged to expressly point out
possible health risks arising from use.
This product is capable of producing sound pressure exceeding 85 dB(A). 85 dB(A) is the
sound pressure corresponding to the maximum permissible volume which is by law (in some
countries) allowed to affect your hearing for the duration of a working day. It is used as a
basis according to the specifications of industrial medicine. Higher volumes or longer
durations can damage your hearing. At higher volumes, the duration must be shortened in
order to prevent hearing damage. The following are sure signs that you have been subjected
to excessive noise for too long a time:
• You can hear ringing or whistling sounds in your ears.
• You have the impression (even for a short time only) that you can no longer hear high
notes.
Intended use
Intended use of the product includes:
• having read this instruction manual, especially the chapter "Important safety instructions"
on page 2,
• using the product within the operating conditions and limitations described in this
instruction manual.
"Improper use" means using the product other than as described in these instructions, or
under operating conditions which differ from those described herein.
Important safety instructions
3
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