This app can control the helicoppter after you connect the transmitter to the audio jack of ipod or iphone.
throttle: it can control up and down of heli
direction controller: control forward and back, left and right rotate, with move on the screen.
acceleration sensor: control forward and back, left and right rotate,with tilt ipod or iphone.
rotate interface: rotate screen.
power switch: ready to fly.
trimmer: adjust fly state of heli