Sennheiser EM 500, Инструкция по эксплуатации

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Important safety instructions
3
Overloading
Do not overload wall outlets and extension cables as this may result in fire
and electric shock.
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 due to high volumes
This product is capable of producing sound pressure exceeding 85 dB(A).
85 dB(A) is the sound pressure corresponding to the maximum permis-
sible 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 dura-
tions 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.