Watch Drones Fly so Precisely, They Dance in a Choreographed Light Show

Just how precise are drones? Take a look at these formation flying beauties to find out. The official launch of the Prenav quadcopter is set to come in 2016; it's new technology from a startup that nabbed $1.2 million in seed funding to develop drones that can fly closely to all structures, like cell towers and wind turbines.