This smart brush tells you if your hair is healthy The Kérastase Hair Coach is a hairbrush that connects to an app on your phone. Facebook Prev Article Next Article Gadgets Checkout these cool gadgets... Related Posts Electric Crazy Carts Allow Kids to Drift Snake Robot How To Make A Toothbrush Robot Thanks to Their Patented Solid Design Tannus Tires Never Go Flat Man Invents Strange Tech For Viewing 3D Cigarette Lighter and Beverage Holder for PC
