Personal Sound Amplification Products (PSAPs) are consumer electronics designed to amplify ambient sound for individuals with normal hearing. Rather than treating a medical condition, PSAPs provide a situational audio boost in specific environments — such as trying to hear a speaker at a crowded lecture, birding in nature, or conversing in a noisy restaurant.
Importantly, PSAPs are not regulated by the FDA as medical devices. In the wearable technology landscape, most bone-conduction smart glasses equipped with ambient hearing features are classified as PSAPs. Because they bypass stringent medical regulations, these devices remain affordable and require no prescription to purchase.
Over-the-Counter (OTC) Hearing Aids are FDA-regulated medical devices specifically engineered for adults experiencing mild-to-moderate hearing loss. A major industry shift occurred with the OTC Hearing Aid Act of 2022, which opened the healthcare market to consumer technology brands.
This legislation allows users to purchase legitimate, medical-grade hearing assistance without requiring a doctor's prescription or a professional audiologist fitting. However, because they are classified as medical devices, OTC hearing aids must meet rigorous safety and performance standards mandated by the FDA. Typically falling within a price range of $200 to $1,500, these devices represent a convergence of consumer electronics and specialized health capability.
Understanding the distinction between these two categories is crucial for smart glasses consumers. The regulatory path a company chooses directly impacts what their smart glasses can legally claim to do.
Some forward-looking smart glasses developers, like Nuance Audio, are actively pursuing FDA clearance to classify their devices as true OTC hearing aids. Most other audio-focused brands position their products strictly as PSAPs to avoid the heavy regulatory burden and extended development timelines associated with medical devices.
For consumers, the choice comes down to your specific health needs: if you have diagnosed hearing loss, you should look for devices carrying official OTC Hearing Aid certification. If you merely want general volume amplification or enhanced Situational Awareness, a PSAP-class device may be entirely sufficient.
Buyers should also note that regulatory frameworks differ globally. While the US operates under the OTC Act, the European Union governs these devices under MDR 2017/745, and Switzerland requires Swissmedic approval for hearing aid classification.
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