A hearing loop system consists of a microphone or audio source to pick up the spoken word; an amplifier which processes the signal is then sent through a wire loop.
The loop wire is placed around the perimeter of a room or sanctuary to act as an antenna that radiates the magnetic signal to the hearing aid.
When a hearing aid user selects the “T‟ setting; they can pick up the sounds spoken into the PA systems microphone instead of the hearing aid’s internal microphone.
This results in improved speech understanding because the listener receives a clear signal without any background noise.
A Hearing loop works in conjunction with a hearing device that has a telecoil. Together they tailor the sound to each individual’s hearing loss. The hearing loop cuts out all of the confusing background noise, allowing clear sound.
Good video from Contacta. The stats are different than the US, but the loop information is the same.