FM devices are accessories that can be used alone or with your hearing aids.
They are portable and are preferred for listening where there is loud background noise, such as in a classroom.
The range for FM systems is up to 45 metres.
FM devices include a transmitter and a receiver. The microphone transmitter (either lapel, tabletop, or boom) is given to the speaker and the receiver.
You can wear a receiver on your ears, or you may be able to connect it to your hearing aids. A neck loop receiver is worn around the neck and can transmit the FM signal to the hearing aids.
LoopMe by BHA has more information on FM systems and hearing augmentation solutions.