Wishing your spouse a good outcome choosing and wearing hearing aids; i just tried a pair (moderate hearing loss both ears) for a few hours a day for 4 days but seemed to make my tinnitus worse or, made it sound more high pitched; there is a lot of information on the Internet I found useful.. these are small roundish speakers for behind the ears with a thin wire at the end of which is a sort of rubber dome which you gently push into ear canal; but I read there are some even smaller, the actual aid fits right into the ear canal, which looks hardly noticeable. Unfortunately I also have hyperacusis and "musical ear" as well as stuffiness etc. For over a week ear feel plugged, a bit sore and still the tinnitus etc. So I will return the "loaners" hearing aids and just keep asking people to repeat what they say! I have a bit of jaw pain too so makes life miserable on top of other issues 🙁 If you do visit audiologist maybe they also have "loaners" so spouse can try before purchasing.