This looks kind of interesting from www.thinkgeek.com. Only $99.95. . Feel the Music in Your Bones If it wasn't for your music-collection, you couldn't make it through the day. You'd probably devolve into a mindless beast who flies into a froth at the mere mention of misfortune, maniacally massacreing your mates. They say music soothes the savage beast, and we believe it does. The problem constant soothing music brings is it can block the outside world. computing/speakers/9b1e/images While that sounds like a good thing, we have to remain aware - this is an interactive and dangerous world. At work, your officemates may want to ask you a question. On the street, that honking horn or siren is warning you of imminent disaster. In the field, that high-pitched whistling portends a meteor about to smack you upside the head. It would be ideal if we could listen to our music while still being aware of the world around us. A problem finds a solution: The Vibe Body Sound headphones clip on to your outer ear and conduct vibrations through your skin and cartilage. Those vibrations rumble through your skull directly to your inner ear where you hear them clear as a bell. All the while, your ear canal remains uncovered, allowing the sounds from the environment access as well. Carry on conversations and never skip a beat. Feel the music, don't just hear it. The high-frequency driver rumbles and buzzes on your ear, further immersing you in a musical experience described by several ThinkGeek monkey-testers as "really cool!" Features Standard 3.5mm jack, fits most major portable audio devices Built in lithium ion battery charges in 90 minutes via USB, gives 6 to 8 hours of listening pleasure 3 switchable levels of vibration strength. Low, Medium, and Tectonic! You might also like: X-mini Capsule Speaker