Whether you are looking for something to help you hear better or something to help you hear less(and thus preserve your hearing), this is a good choice to come to get fitted for anything custom. This is where I came for special personalized musicians earplugs(better than any of the off the shelf variety I have tried) that allow me to hear both music and conversation in loud dance clubs better than most other people can hear either — without going deaf. If you have already lost some or all of your hearing, this would be a good place to come for some kind of aid to help you hear far more.