Important safety instructions
Danger due to high volume!
The equipment is used for commercial purposes. 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.
The HDE 2020 D stethoset receivers are 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:
yYou can hear ringing or whistling sounds in your ears.
yYou have the impression (even for a short time only) that you can no longer hear high notes.
Normal use of the equipment
Normal use of the equipment includes:
yusing the equipment for commercial purposes,
yreading these instructions and, in particular, the section “Important safety Instructions” on page 2,
yonly using the equipment under the operating conditions, as described in these instructions.
Using the equipment other than as described in these instructions or
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