In-the-canal custom-fit hearing aids are smaller than ITEs and are partially Visible in the outer ear. In-the-canal devices are best for mild to moderate losses,but can be used by some patients with moderately severe losses.
In behind the ear hearing aids, the receiver, microphone and amplifier are housed in a shell that fits behind the ear. A clear plastic tube connects the hearing aid to a custom ear mold worn in the ear. Because of their large shell size, BTEs can hold more circuitry than other styles. BTEs can be fitted for people with a wide range of hearing losses and they tend to be very durable.
Completely-in-the-canal custom-fit devices fit all the way in the ear canal. They are rarely visible and are therefore cosmetically appealing. Some hearing aid wearers with narrow ear canals may not be candidates for CICs. These tiny hearing instruments are most suitable for mild to moderate losses.
IN in-the-ear hearing aids, the circuitry is built into a custom ear mold that fills most of the visible portion of the ear. ITEs are best suited for mild to moderately severe hearing losses. ITEs are ideal for those with limited dexterity because of their size and easy-to-use controls.
Thin-tube BTEs typically have shells identical to or smaller than traditional behind the-ear hearing aids, but thin-tube BTEs have thinner and less noticeable acoustic tubes. Thin-tube BTEs often use a dome-shaped ear bud which can result in less occlusion, better fit and increased comfort. Most receiver-in-canal (RIC) instruments are cosmetically similar to thin-tube BTEs, but they utilize a thin transmission wire instead of acoustic tubing.