How the heck does it do that? Japanese telecom giant NTT DoCoMo has used the Mobile World Congress in Barcelona to demo a very cool new handsfree interface you can use to control an MP3 player using gestures you make with your eyeballs. Sensors in the earbuds themselves measure changes in electrical potential to convert your eye movements to iPod commands. Fascinating stuff... and while using it on an MP3 player might seem a bit naff, there's probably a range of other situations where handsfree, voice-free control options like this could be really useful.
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