Once you put these things in your ears, you want be able to stop putting them in your ears until you feel sick to your ears. You can't listen to just one song with these headphones. They're addictive. I'm craving them right now.
Check it out
$199 from Aumeo Audio »
Plug in your existing headphones to the Aumeo module and customize their output to suit your own ears' preferred input. Aumeo gives you the ability to tweak your audio until it syncs with your individual hearing sensitivity...