HumanTechnik LPU-1 Mode D'emploi page 8

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Cleaning the hygienic covers
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The hygienic covers contained in the standard delivery package should be
cleaned when they become dirty.
To do this use the Hygienic-SET offered as a special accessory
(order no. A-4982-0).
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Volume adjustment of the receiver.
There is no ON/OFF switch.
The receiver automatically
switches on when worn.
If the sound quality of the receiver
becomes noisy and distorted the bat-
tery pack should be exchanged by a
loaded one.
Warning: do not force the battery
pack into the charger or receiver.
It fits easily when correctly
inserted.