A hearing loop is a type of assistive listening system used to transmit sound to the hard of hearing.
Such systems are now required in most public venues that feature a public address system.

In i’s simplest form a hearing loop is an insulated wire loop that surrounds a seating area.
The loop is connected to an amplifier and microphone and it transmits a silent electomagnetic
signal to manual telecoil equipped hearing aids or cochlear implants that those devices turn into sound.

Users without a telecoil equipped hearing aids or cochlears are provided with a receiver that contains a
telecoil and a headset or ear buds to hear the proceedings.