I decided to listen to some music on the iPhone today using my Sony earphones, only to discover that my earphones don't fit in the bumper's cut-out. I then tried to use Apple's white earphones that they included with the phone, but they fall out of my ears every time I move my head. Anyone here using any decent quality headphones that fit the bumper's cut-out? A mic (like on iPhone's earphones) would be a plus. I'm looking for something in the price range of $20-$50, because they usually last me around six months before they break.