CES 2010: Bluetooth 3D Glasses
 January 7, 2010 
 By:  Brian Linder 
 The world's first Bluetooth-enabled active-shutter 3D glasses have been unveiled at CES courtesy of XpanD and TV maker VIZIO. 
 
 If that doesn't mean anything to you, here's what they do: XpanD's eyewear communicates with VIZIO's forthcoming Full HD3D sets via Bluetooth, then transforming each lens fromopaque to transparent in perfect sync with the images displayed on the screen, delivering the full frame rate capable by the television. 
 
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