These are inductive receivers built into some hearing aids to send sound directly to them using magnetic fields generated by a loop in the listening area. [David]’s loop ended up being 240 ...

Never use a sharp object to clean wax from hearing aids; instead, use a wax loop or brush. It's essential to store hearing aids in a cool, dry place and open the battery doors when they're not in use.

ITE hearing aids are fairly straightforward: Use a hearing-aid brush to wipe down the outer portion, move on to a wax loop ...