Turn your Headphone into a Speaker System with just a click of a button!  Now everyone can rock with you!

GoStereo Tune In Tune Out Speaker system works with:
iPod
MP3 Players
CD Players
Computer
DVD Player
Any device w/3.5mm headphone Jack

The GoStereo Tune In Tune Out Headphones are a good choice for ayone who wants a device that will satisfy a personal listening experience and allow for the sharing of tunes on the fly. - CNET