While the deaf cannot hear music through their ears, the fact that music is just vibrations in the air allows them to "feel" it rather than hear it. The SOUNZZZ is a device designed to allow the hearing impaired to enjoy music just as well as the rest of us.
The sound is translated into stronger vibrations that are felt by holding the egg-shaped device. It also plays a light show along with the sound. It seems pretty cool, even for those of us with normal hearing, as it has a headphone jack for people who want to use it while hearing the music it's playing. Unfortunately, it's merely a concept at the moment.
Via Yanko Design