https://www.fda.gov/medical-devices/hearing-aids/otc-hearing-aids-what-you-should-know https://www.fda.gov/medical-devices/hearing-aids/otc-hearing... Seems li

https://www.fda.gov/medical-devices/hearing-aids/otc-hearing-aids-what-you-should-know https://www.fda.gov/medical-devices/hearing-aids/otc-hearing... Seems like they are regulated for safety, and there are lots of (decent) requirements.