The f hearing aids were made in the fifteen00s out of wood so n t knows who invented them. They looked like the human ear. By the n century, hearing aids sold off in n places around the world as consumer goodss. However, the hearing aids of those times were affordable s by the upper class.
You can’t get t for s but an amplifier -nobody who are working with hearing aids calls them templates- they’re called impressions and it ‘s d for you to take these yourself. There a couple of p out there that are s hearing aids with a rechargeable within- Siemens ‘s one of those c however , there are no rechargeable batteries that you take out and c yourself. Either way- you required to be fit by a p using a software system called Noah- you are able’t buy this for yourself and wouldn’t wish to make m for yourself- you don’t know s about the acoustics in the hearing h and the acoustics in your i ear. Trust s who knows- and s around for that p you will trust with your hearing.