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Merck Manual

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Hearing Aids: Amplifying the Sound
Hearing Aids: Amplifying the Sound
Hearing Aids: Amplifying the Sound

Amplification of sound with hearing aids continues to evolve with technology driving improvements in functionality and cost. Hearing aids are generally thought of as either behind-the-ear or in-the-canal. Bone-conduction hearing aids as well as bone-anchored hearing aids are also options for children. See also .