This is a follow up to my comment that my hearing aid had stopped working even though fully charged. It happened twice so I went to my audiologist. She changed the wire and the ear piece and said if it happened again I would have to send it to Phonak for repair. She said if the parts become damp it can damage the aid. I used to remove it and leave in bathroom while I bathed. I don't do that anymore. So far it is working well.