Review: Ceretone Core One OTC Hearing Aids

App usage is mandatory to control aids but is so primitive that it's useless. No frequency tuning features, so all sounds get louder, for better or worse. Not the most comfortable for long wear cycles.

Indiegogo-backed Ceretone is yet another hearing aid company aimed at people looking for a low-cost, low-complexity way to give their hearing a boost. At $349 for a pair—or $229 for a single ear’s aid—the tiny hearing aids are designed to have only a modest impact on hearing. Fortunately, they also make an equally modest impact on the wallet.

The first thing you’ll notice about the Core One is how small the hearing aids are. I weighed them at 0.96 grams each (with a small ear tip), which makes them perhaps the smallest aids I’ve tested to date—just a hair lighter than the Sony ...