... in the sky ! Features: You are looking at a 6 CH channel USB RC Helicopter flight simulator,this simulator ... be used without external power. It works just like a real transmitter and can be used with many real ... flight software,like FMS or G2,G3,G3.5,aerofly, you ... with DirectX version 9.0b or highter A free USB port and a trainer output on your transmitter Package content ...