Invention: Body-wired headphones: Sony's Tokyo research lab has found a way to connect headphones to portable music and video players without the need for fiddly wiring. They simply feed an audio signal straight through the listener's body. [...]
The new system uses the listener's body as a capacitor that carries a tiny electrostatic charge. A music or video player sends a fluctuating signal to a conductive cloth pad ? such as a wrist band ? and this slightly charges the wearer's body. A pair of conductive ear pads in the headphones pick-up the signal and rapidly convert it back into sound.
