0 a wire inside a hearing aid that can help people hear better on the telephone, and that can receive sound signals sent from an induction loop (= an electronic system in a public place, for example a theatre, that sends such signals):
A telecoil, a small device that can be embedded in the hearing aid, can improve hearing on the telephone.
The telecoil works as an antenna to pick up magnetic signals and streams them as sound into your hearing aids.
Hearing Aid Loops use Induction Technology to transmit sound from a PA system directly to the individual’s hearing aid through the T-coil.
