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The design, in terms of both circuitry and style is determined by the
patient's hearing loss, the size and shape of the patient's ear canal,
the limited dexterity of the patient, and cosmetic appeal.
Most hearing losses can be aided by circuitry built into one of the four
major styles depicted below.
Completely in the Canal |
In the Canal |
In the Ear |
Behind the Ear |
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