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Japanese invention to sink teeth into wearable-device market

Its developer hopes to have the crescent-shaped earpiece looking more like a fashionable accessory before it hits shelves.

OSAKA -- In a year that has seen much ado about wearable devices, a new gadget could have tech enthusiasts champing at the bit -- literally.

     Kazuhiro Taniguchi, a lecturer at Hiroshima City University, says he has developed an ear-mounted device the wearer can control simply by biting down. It uses infrared waves to sense jaw muscle movement and also contains GPS, a compass, microphone and speaker.

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