HumanTechnik RadioLight DIR Mode D'emploi page 15

5
Volume adjustment
Battery pack replace
6
If the sound quality of the receiver becomes noisy and distorted you
should replace the battery pack with a charged one or charge the
receiver, including battery, in its cradle.
Warning: do not force the battery pack into the charger or
receiver.
Maintenance of the headset receiver
7
The ear pieces have to be cleaned or exchanged if dirty.
Please use for this the hygienic-set (order no. A-4982-0) which is
available as a special accessory.
Volume adjustment of the
receiver.
There is no ON/OFF switch.
The receiver automatically
switches on when worn.
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