All you need to do is to place a hot object such as a piping hot mug of your favorite coffee on the red side, or if it is a sweltering summer day, then an ice cool mug of Coke on the blue side, followed by hooking up your smartphone. If you have faith in the Epiphany One Puck, then pledging $99 will net you a single Puck, where it is tipped to retail for $150 should the idea take off in a massive manner.