Here is a smart wearable device that turns your hand into an air mouse to interact with your phone, tablet, and smart TV. Wepoint is an electromagnetic based gesture tracker that runs on a rechargeable battery. You will be able to perform gestures without regardless of surface.
Wepoint uses an E-cap technology that works like a tiny radar system. It has a 400-1800 dpi move speed. You can find out more about it here.