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 Hotel Clerk Robot Mini teases augmented reality eyewear for drivers Elliptical paddle board Lift eFoil – Hovering Over Water Cool LED wheels for your bike Floating Geometric Machine – Festo
