Start with intended use
The FDA consumer comparison makes the dividing line clear. Hearing aids are intended to compensate for hearing loss. PSAPs are intended for people with normal hearing who want to amplify particular sounds in situations such as birdwatching or listening at a distance.
Both may sit behind the ear, use earbuds or connect to a phone. Appearance, price and the word “amplifier” do not settle the category.
Why does the category matter?
US OTC and prescription hearing aids are medical devices. The FDA sets requirements for their safety, effectiveness and labelling. A PSAP is not a medical device; the FDA device page describes it as an electronic product for non-hearing-impaired listeners.
That does not mean every hearing aid will fit every person, or that every PSAP is poor quality. It means the products have different intended users and regulatory obligations.
How can you check a product listing?
Look beyond the marketplace title. Check:
- the manufacturer’s exact product name and intended use;
- whether the box identifies it as an OTC hearing aid;
- the required warnings and user information;
- the age and hearing range stated;
- who provides support and software updates; and
- return, warranty and replacement-part terms.
Be cautious when a seller uses “FDA registered” as if it were proof that a specific product is FDA approved. Registration or listing is not the same claim as premarket approval.
When should shopping stop?
Neither a PSAP nor a self-selected OTC aid should delay care for sudden, rapidly worsening, one-sided, painful or draining hearing symptoms, marked dizziness, or severe difficulty. An assessment is also the better starting point if you are uncertain whether your hearing difficulty is mild-to-moderate.