Sony files for body-wired headphones patent
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.
Existing wireless headphones use Bluetooth radio, but this means pairing two devices beforehand and is prone to interference from other equipment. Another approach - infra-red - relies on line-of-sight, which is rarely practical.
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