I don't know if this is allowable, but if you had a copy of your audio, I could give you an array of choices that could help you. The most important thing is to remember is dexterity because batteries are small and so are battery doors. The rechargeable aid might be good. Starkey Mgr has a foundation for free hearing aids. And one is always better than none at all. Be glad to help you and definitely keep the cost down for you (I only am offering advice but I know my manufacturers and price points for pretty much all of them.) Thanks, Gina