Which type of hearing aid is worn completely in the ear canal?

The correct answer is that hearing aids worn completely in the ear canal are referred to as Completely in the Canal (CIC) aids. These devices are specifically designed to fit deep within the ear canal, making them almost invisible when worn. Their small size allows for a discreet appearance, which many users find appealing.

CIC aids also benefit from being closer to the eardrum, which can enhance sound quality and improve the audibility of high frequencies. Because of their placement, they can take advantage of the natural shape and acoustics of the ear canal, providing a more natural sound experience for the user.

In contrast, In the Ear (ITE) aids are larger and can fill a part of the outer ear but do not fit as deeply as CIC aids. Behind-the-Ear (BTE) aids sit behind the ear and use tubing to deliver sound into the ear canal, making them less discreet. Receiver in the Canal (RIC) aids feature a small case behind the ear with a receiver in the ear canal, but again, they are not entirely in the canal, unlike CIC aids. Therefore, the key distinguishing feature of CIC aids is their complete placement in the ear canal.