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15
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ADVANTAGES
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With cordless sound transmission, you are independent of cables. Only
you can hear the sound, and you can decide the volume yourself without
disturbing others!
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According to present scientific knowledge, sound transmission by infra-
red light poses no risk to health whatsoever.
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The new carrier frequencies of 2.3 and 2.8 MHz ensure highest
reliability, as this transmission range is not subject to interference from
fluorescent tubes or digital controls.
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Mains connection via plug-in mains unit. The transmitter thus remains
small and unobtrusive. If you take your system to a country with a
different mains voltage, all you need to do is purchase the suitable plug-
in mains unit.
SENNHEISER TECHNOLOGY AND SENNHEISER SERVICE
ARE FUTURE-ORIENTED
Even after many years, you will still have unlimited pleasure from your
infra-red sound transmission system. You can buy replacements for parts
subject to wear and tear, such as ear-cushions and accupacks, for many
years to come. And in the unlikely event that any repairs should be
necessary, Sennheiser Service Departments worldwide give moderately
priced, fast and competent repairs.
ENVIRONMENT AND HEALTH
Devices powered by rechargeable batteries are environmentally friendly.
This energy source can be recharged many times. Conventional batteries,
on the other hand, must be disposed of as special waste after they have been
used just once. Sennheiser uses environmentally friendly NiMh rechargeable
accupacks which contain no heavy metals. If an accupack should be defec-
tive, it is then recycled – the dealer who sold it to you will take it back and
will also supply you with a new, original Sennheiser accupack. (Recycling
methods may differ country to country).
THIS BOX CONTAINS ...
... several individual products. Your new infra-red sound transmission
system consists of five components:
The TI 380
transmitter
converts the sound signal from the headphone
socket of your television set or hi-fi system into invisible infra-red light
and radiates this light into the room.
The transmitter has two integrated charging compartments for recharg-
ing the BA 151 accupack.
The transmitter (with the twin charging unit) is powered via a
plug-in
mains unit
.
You can connect your television set or hi-fi system with the supplied
cable
. The 3.5 mm mini jack plug fits most headphone sockets. An
adaptor
for 1/4” (6.3 mm) headphone sockets is also included in the
supply schedule.
The
HDI 380 headphones
feature an integrated receiver which converts
the infra-red light back into an audio signal.
The
BA 151 rechargeable accupack
powers the headphone receiver.
Before using the BA 151 for the first time, it MUST be charged for
24 hours!
Please also note any enclosed documents which inform you
of alterations or country-specific variants. Such documents are
supplements to this instruction manual.