Therefore, all the other noises from the classroom are, in comparison, much softer than the voice of the teacher allowing for better comprehension.
There are 2 types of FM systems: individual and free field.
In the individual ones, the student wears a receiver which could either look like a "walkman" with headset or wireless ear-worn model while the teacher wears a transmitter.
The free-field system consists also of a transmitter which is worn by the teacher but in free-field the receiver is either 4 speakers arranged around the classroom or a wall panel type speaker. In this version, the whole classroom benefits from an improved voice to noise ratio.
We sell and rent leading brands of FM systems at our clinic: Oticon, Phonak.