when i got my left hearing aid and had both ha's on I heard a fan...on both sides! lol I haven't heard that in awhile. I work in a bar too so every song that comes on the more and more I hear it the more I can pick out little things that I never heard before, esp lyrics in the car when I am listening to a song even if I have heard it many times before, I catch a new word and it amazes me that I never heard the work before or just never deciphered the word