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Treatment: Hearing Aids

Hearing aids amplify sounds, improving hearing in people with most types of hearing loss. These devices have a tiny microphone, amplifier, and speaker, all powered by batteries. The range of sounds amplified by a hearing aid is tailored to the individual’s pattern of hearing loss.

In-the-canal hearing aid

This type of hearing aid uses components that fit inside a moulded case, which is placed in the ear canal.

Behind-the-ear hearing aid

A small case worn behind the ear houses the battery, microphone, amplifier, and speaker of this type of device. Amplified sounds travel along a tube into the ear canal.

From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.

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