Hearing Aid

Designed to amplify sound for the hearing impaired, the hearing was invented by Harvey Fletcher while employed at Bell Laboratories in 1898. The device is worn behind or inside the ear and is battery powered. When first introduced, the hearing aid was known as an “ear trumpet.” Today, hearing aids come in various forms that address different causes of deafness. Behind the ear aids are used for mild to chronic hearing loss. Another form, the “in the canal” hearing aid, provide the benefit of being largely undetectable by observers. They are more expensive then behind the ear due to having to be customized for individual fit.

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