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 Meet the 89-Year Old Who Built a Train in His Backyard Electric Crazy Carts Allow Kids to Drift Keyboard – Elite of Geeks Propeller at the Front and Back of a Plane Prototype Quadrotor Wheel Can Fly, Float, and Roll The Unstoppable Chaos Robot
