Sennheiser L 2015, Инструкция по эксплуатации, Страница: 7 / 104

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The 2015 System
The 2015 System allows the integration of people with hearing problems in
schools and universities, at the workplace and in their free time. Design and
characteristics of the 2015 System are ideally suited to the needs of the
users. Operation is simple and easy to learn. The units are small, lightweight
and unobtrusive when worn.
The operating principle of the 2015 System
The speaker, for example the teacher, wears the SK 2015 transmitter. The
person with hearing problems, the pupil in this case, wears the EK 2015
receiver. The receiver can be equipped either with a connecting cable for a
hearing aid or with headphones. Without wires and with full freedom of
movement, the pupil can now hear the teacher as if he were sitting right next
to him. For the time in which the teacher is speaking, ambient noise is
reduced markedly, so that the dialog between teacher and pupil has priority
at all times. When the teacher is not speaking, the pupil can hear his fellow
pupils either via the microphones in the hearing aid or v ia the internal
microphone in the receiver. The 2015 System gives reliable assistance, even
in difficult listening situations. The transmitting power is sufficient for
relatively large distances. The MKE 2015-2 screw-on microphone ensures a
high degree of intelligibility. Loud background noise and bad acoustics are
faded out by the ME 2015-H neckband microphone (optional accessory). The
wide range of accessories allows the receiver to be connected to almost any
hearing aid; it can be coupled to the latter either electrically or inductively.
Transmitter and receiver are powered via the BA 2015 accupack. The
operating time of the accupack is sufficient for a normal working day (up to
12 hours). The charging contacts on transmitter and receiver allow the units
to be charged in the L 2015 charger without the necessity of removing the
accupack.
If no mains supply is available for recharging the accupack, you can
alternatively use 1.5 V AA size batteries. When powered by batteries,
transmitter and receiver can also be used for up to 12 hours.