I have my headphones on, but I am not listening to anything. When I scroll across the pages of apps or up and down a document I hear a weird type of static. It's very quiet and It could not be there at all and I might just be crazy, but I'm pretty convinced it's there. It might have responded positively with an increase in volume, but I'm not sure. I also have my iPhone plugged into the wall for charging; I'm not sure if the charging has anything to do with it. Any insight would be greatly appriciated.