From tracking moods to putting on a show, it's AI-everything at CES

Entrepreneur Antony Perzo introduces a small device called Emobot, which looks like a cross between a speaker and a piece of abstract art, and explains: “It’s an emotional thermometer!”

Like hundreds of other exhibitors at CES, the world’s biggest tech expo, French engineer Perzo is selling the merits of an object that depends on the latest breakthroughs in artificial intelligence.