Safety Instructions - Sennheiser EK 3253 Instructions For Use Manual

Safety instructions

Please read these instructions carefully and completely
before using the receiver.
Make these instructions easily accessible to all users at all
times. Always include these instructions when passing the
receiver on to third parties.
Never open electronic units! If units are opened by customers
in breach of this instruction, the warranty becomes null and
void.
Water entering the housing of the receiver can cause a short-
circuit and damage the electronics. Protect the receiver from
damp and wet. Only use a slightly damp cloth to clean the
receiver.
Follow the safety instructions on the receiver.
Attention! High volume!
This is a professional transmission system.
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 system 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 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.
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