Induction loop module for Ultra. This module offers the option of using a ring line for hearing aids in conjunction with the Ultra loudspeaker modules audio or video of all systems. This offers the possibility of better communication with the subscriber. During operation, this ring line emits an alternating magnetic field that generates an electrical voltage in the receiving coil of the hearing aid through electromagnetic induction, the course of which is the same as that of the audio signal. In the hearing aid, this is amplified by the audio amplifier and passed to the wearer's ear via the earpiece. In order to be able to use such induction loop systems, the hearing aid must have a so-called telephone coil (short: ""T-coil""), which absorbs the alternating magnetic field of the induction loop. The hearing aid microphone is usually deactivated when the telephone coil is used. Dimensions: 100x90x35mm.
