Sennheiser HD 280, Инструкция по эксплуатации

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Delivery includes
• Headphones
• Adapter to 1/4˝ (6.3 mm) jack plug
• Instructions for use
Attention! High volume!
This is a professional pair of headphones. 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:

You can hear ringing or whistling noise in your ears!

You have the impression (even for a short time
only) that you can no longer hear high frequencies!
HD 280 BDA 6.6.02 06.06.2002, 9:49 Uhr 14