Ask Linn: FM Listening Systems
An FM listening system is now available from Sennheiser that is similar to the infra-red type system discussed above. The Sennheiser 820S is a TV/music listening system that is specially designed for cochlear implant or hearing aid wearers.
The Sennheiser 820SThe transmitter connects to a TV, stereo or public address system and the receiver can be clipped to clothing. The receiver can be coupled via the telecoil with an induction neckloop or silhouette. This system can also be connected directly to the Nucleus processor using the Personal Audio Cable or used with headphones.
The use of radio frequency (RF) technology allows use in a larger area without the need to maintain “line of sight” which is necessary with comparable infra-red units. With a range of about 100 feet, users can leave the room while still being able to listen to a TV program or music. The FM type system is not compatible with theater infra-red systems.
