Walkera Dragonfly 53 Co-Axial Double Rotors Electric RC Helicopter RTF

You can fly it because it has two 17.7" main rotors that are co-axial and contra-rotating on the single shaft. This torque canceling design makes Dragonfly 53 stable and flyable on your very first flight. Even a complete newcomer to helicopter flying can fly this at once. The helicopter is complete and ready to fly. Dragonfly 53 is not a flimsy toy -- it is an extremely well-built and well-designed radio controlled model helicopter. If you ever wanted to fly a micro electric helicopter but were put off by the difficulty of flying a helicopter, Dragonfly 53 is for you.
(via Walkera Dragonfly 53 Co-Axial Double Rotors Electric RC Helicopter RTF @ Hobby-Estore.com $127.5)