The iSound, designed by Seohyun Baek, is a set of headphones that lets you to listen to your mp3 player while still hearing the background noise around you. That’s a pretty handy thing, especially when that background noise is oncoming traffic. Old headphones=death, these=you live to get hit on another day. They use a semi-circular design that doesn’t cover your whole ear, that way some background noise is still heard. The unit is wireless with a bluetooth module that connects to the headphone jack in your mp3 player. Excellent concept that will surely find a market.