I’ve worked in the industry, and try to remember that people’s hearing can change rapidly and customers are finicky so your novel tech will need to be adjusted

I’ve worked in the industry, and try to remember that people’s hearing can change rapidly and customers are finicky so your novel tech will need to be adjusted by someone who isn’t about to learn a tech stack for one line of products. We had patients that would come in every couple of weeks for years, asking for slight changes to their frequency range. The hearing aids themselves will be physically abused. Worn in saunas, get packed with ear wax, be left in freezing temps, get chewed up by pets, stepped on, dropped into sinks and toilets. It’s actually incredible that most are repairable despite all of that, without even needing to return to the manufacturer. They also need to be usable by those with limited mobility and no ability to use tech, and relatives with no idea what to do except replace the battery and put them in the ears.