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Hearing Aid Earmold

Earmolds are attachments to behind-the-ear (BTE) hearing aids. They serve three main purposes. Earmolds couple the BTE hearing aids to the wearers’ ears for retention and comfort. They provide a path for amplified sounds to enter the ear canal through the sound bore. Earmolds have vents, which modify sounds in the ear canal by allowing controlled sound leakage from the ear canal and direct entry of sounds from outside the ear canal. Included in an earmold is a sound bore, which allows amplified sounds from the hearing aid to enter the ear canal. A vent allows air and sound exchange between the outside and the inside of the ear canal. The canal stalk is the portion of the earmold that fills the ear canal. The ...

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