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In-the-ear hearing aids belong to the closed supply, ie the auditory canal is largely or completely closed. Volume control and program selection can be done via a remote control. To ensure that the devices fit perfectly, they are individually adapted to the ear. 

Receiver-in-the-canal (RIC) hearing aids—also referred to as receiver-in-the-ear (RITE) or canal receiver technology (CRT)—are smaller than standard BTE models, but are easy to maneuver and can still house a variety of features. Like standard BTEs, they can be worn comfortably behind the ear. However, unlike regular BTE hearing aids, the RIC’s loudspeaker or “receiver” is located outside the housing and positioned at the end of a thin earwire, placed near the ear drum. Since generated sound only has to travel a very short distance with lower transmission loss, less sound energy (and battery power) is required to produce a superior listening experience.

Hearing loss is a sudden or gradual decrease in how well you can hear. It is one of the most common conditions affecting older and elderly adults. Approximately one in three people between the ages of 65 and 74 has hearing loss and nearly half of those older than 75 have difficulty hearing.

Our ears are like antennae picking up signals from different directions. The complex structures of the ear process these signals and pass them on to the brain, where they are interpreted. Therefore, for optimum hearing, it is best if both ears are fully functioning. But what exactly happens when sound waves enter the ear?