Sennheiser RI 150 Instructions For Use Manual page 13

PUTTING THE RECEIVER INTO OPERATION
Insert the BA 151 accupack into the compartment in the receiver.
SWITCHING ON THE RECEIVER ON
Use the rotary switch to switch on the receiver and adjust the volume.
CLEANING / REPLACING THE EAR-CUSHIONS
Use a damp cloth for cleaning your stethoset receiver. Do not use any solvents.
The ear-cushions can easily be removed from the headphones and cleaned with
warm soapy water. From time to time, however, the ear-cushions should be
replaced for reasons of hygiene. Replacement ear-cushions are available with
different degrees of softness:
Black ear-cushions, firmer version
White ear-cushions, softer version
Please order your ear-cushions from your Sennheiser dealer.
EP1 Cat. no. 04655
EP2 Cat. no. 04656
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