Hearing Aid Buying Guide: What to Know First

Prescription aids, OTC aids, PSAPs, and implants serve different losses. Prescription fitting is based on an audiogram and often verified with real ear measurement, while OTC aids are intended for adults with perceived mild to moderate loss and are set up by the user.

Certain warning signs, such as sudden or one sided loss, are outside the scope of self fitting devices. This article describes the main device categories, common features, and how they differ.

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