In’Tech BTE aids consist of a case, an earmold or dome and a connection

between them. The case contains the electronics, controls, battery,

microphone(s) and often the loudspeaker. Generally, the case sits behind

the pinna with the connection from the case coming down the front into

the ear. The sound from the instrument can be routed acoustically or

electrically to the ear. If the sound is routed electrically, the speaker

(receiver) is located in the earmold or an open-fit dome, while

acoustically coupled instruments use a plastic tube to deliver the

sound from the case’s loudspeaker to the earmold.