Sennheiser RI 150 Instructions For Use Manual page 12

THANK YOU FOR CHOOSING SENNHEISER!
We have designed this product to give you reliable operation over many years.
Please take a few moments to read these instructions carefully, as we want you
to enjoy your new Sennheiser product quickly and to the full.
AREAS OF APPLICATION
Infra-red stethoset receivers for use as additional receivers for exisiting infra-red
transmission systems or for use in conferences and simultaneous translation
applications.
VARIANTS
RI 150
Infra-red mono stethoset receiver, designed for use as a personal sound
amplifier for people with impaired hearing. It can also be used as an additional receiver
for the Set 150 infra-red mono transmission system.
RI 300
Infra-red stereo stethoset receiver, designed for use as a personal sound
amplifier. It can also be used as an additional receiver for the IS 300 infra-red
stereo transmission system.
ADVANTAGES
With cordless sound transmission, you can be independent from cables!
According to current scientific knowledge, sound transmission by infra-red
light poses no risk to health whatsoever.
High reception reliability due to the carrier frequencies of 2.3 MHz and
2.8 MHz. Fluorescent tubes and digital controls do not use this frequency range.
Lightweight and extremely comfortable to wear - the receiver weighs only
45 g, including the rechargeable accupack!
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