Like many folks, when I was a youngster I used to wear lots of button badges to proudly show what bands I liked. Imagine how cool it would be to allow friends to plug a set of earphones into your badge and let them listen to your favorite bands too. That's exactly what the Playbutton MP3 player will allow you to do. Each device will carry one album's worth of music, have controls on the back to play and skip tracks and adjust EQ, and contain a Li-ion battery for up to five hours of continuous playback.
Read the full article: The album's on the button badge