The over-the-counter category in the United States created a genuinely new demand set: adults with perceived mild to moderate hearing difficulty can buy without a prescription or a fitting, which put route questions at the top of the funnel. The comparison of over-the-counter against prescription, and the separate distinction between a hearing aid and a personal sound amplification product, are the two pages that anchor this catalog. They are also the two pages most stores skip, because they read as education rather than merchandising.
Below that sit two parallel structures. The specification layer serves the wearer: fitting styles, rechargeable against disposable batteries, streaming, channels, ingress protection, and what each of those changes in daily use. The plain-language layer serves the family member: what these cost, whether the affordable ones work, how someone sets them up at home, what happens if a parent cannot manage an app. The tone differs, the queries differ, and a single page trying to serve both usually serves neither.
Technically this is a small, expensive, high-scrutiny catalog. Fittings and colours belong under one product with variants rather than a dozen indexable URLs. Specification tables belong in HTML so both a shopper and an assistant can read them. Pages that touch health need visible authorship and review by someone qualified to give it, and an online screener has to remain crawlable while being described accurately for what it is.