A loop system is a specific type of sound system used by people wearing hearing aids with a telecoil, or T-coil, switch or setting, or who have cochlear implants. Hearing loops deliver sound in places of public accommodation where distance, ambient noise and challenging acoustics otherwise make listening and understanding with hearing aids and cochlear implants challenging. The system consists of a special amplifier and a hidden copper wire that transmits sound via a magnetic field. The wire creates a “looped zone” in a space and sends the magnetic signal to any hearing device with a telecoil within the zone. A telecoil, or t-coil, is a small coil of wire inside a hearing aid that allows it to become a wireless receiver.
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