Next-gen drones, talking sunglasses and other Day Two sights from CES

CES doesn't officially open until Wednesday but that didn't stop vendors trotting out more goodies at a series of press conferences the day before. Intel and Sony were the big draws, and the gadgets ranged from collision-avoidance drones to turntables, which are making a resurgence at CES. Here's some of the things that caught our eye.

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