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Safety instructions
Never open an electronic unit! If units are opened by customers in breach of
this instruction, the warranty becomes null and void.
Keep the unit away from central heating radiators and electric heaters. Never
expose it to direct sunlight.
Use the unit in dry rooms only.
Use a damp cloth for cleaning the unit. Do not use any cleansing agents or
solvents.
Attention! High Volume!
This is a professional transmission system. Commercial use is subject to the
rules and regulations of the trade association responsible. 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:
y You can hear ringing or whistling sounds in your ears.
y You have the impression (even for a short time only) that you can no longer
hear high notes.