I think this may be the wave of the future - protection from the props spinning, etc. Air Hogs Elite Helix X4 PR Release: Air Hogs Elite Helix X4! The Air Hogs Elite Helix X4 is a high-performance R/C quad-copter heli. Utilizing 2.4GHz radio control, gyro stabilization, and 4-ducted fans the Helix X4 is aggressively maneuverable and incredibly fast! Built with two distinct control modes, beginners can easily learn to fly, while advanced pilots can work to master flight. The Helix X4 features incredibly crash-resistant materials protecting the rotors and delivering superior durability. It’s full 4-channel control enables the Helix X4 to easily outfly any obstacle. Air Hogs brings you the future of flight with the Elite Helix X4! Age: 12+ Suggested retail price: $89.99 Batteries: 8 AA