> <list of hearing aid functions/> Yes, a hearing aid is not the same as a noise-cancelling earbud, they use different algorithms and the former needs to be mo

> <list of hearing aid functions/> Yes, a hearing aid is not the same as a noise-cancelling earbud, they use different algorithms and the former needs to be more configurable than the latter. Then again, this functionality is implemented in firmware and uses common audio processing algorithms on off-the-shelf low-power DSPs, just like those noise-cancelling earbuds. The IndieGogo example I mentioned seems to be able to sell a pair of multi-purpose buds for around $250 a pair, $600 for 3 pairs. Assuming they are actually making a profit on these sales - and I don't see why they wouldn't, the hardware seems quite standard for noise-cancelling earbuds - this is proof of what I stated before and gives lie to the "overhead" excuse for the high mark-up, especially given the small size of the company behind the things. Of course I do not know whether the buds sold through IndieGogo are as capable hearing aids as "regular, overpriced" ones and I do notice that the stated running time (18 hours) is that of the buds and the charging case together - the buds themselves last for 7 hours between charges. They're specified for "mild ~ moderately-severe hearing loss" and seem to have the required amplification and equalizing capabilities [1]. Maybe give them a try? I don't need hearing aids myself but my mother does use them so I'm thinking about getting her a pair of these once her current pair is in need of replacement. [1] https://c1.iggcdn.com/indiegogo-media-prod-cld/image/upload/c_limit,w_695/v1621441053/zepjoleopyfqcdh6neon.jpg https://c1.iggcdn.com/indiegogo-media-prod-cld/image/upload/...