Earphones can listen to anything. Plug 'em in to the wrong socket on your laptop and proceed to screw around. If do the right .exe, then you can hear your computer think. It's actually relaxing… Kind of like a bee's nest, busy at work. Except for the times when you hear a distinct English word. I usually hear "fade," "dream," or "lie." A friend of mine just gets cussed at when he plugs in.