What is a Frequency-Modulated (FM) System?
An FM System, an assistive listening device, is a wireless system that transmits sound via radio waves. The speaker wears a compact transmitter and microphone while the listener wears a portable receiver. The receiver transmits sound to your ears or, if you wear a hearing aid, directly to the hearing aid or cochlear implant if you have one. The receiver can also connect to a headset if you don’t wear a hearing aid.