Very good

First of all if the volume on the iPhone is not at max, the response is not very good until the volume was adjusted to full. It can stay steady at an altitude and no spinning like some other plastic helis. Fly the way that is suppose to both indoor and outdoor but must be no wind situation. Like to see the improvement on the control, just by tilting the iPhone to move around would be fantastic.

Photo-Geek-Ron about Smart Helicopter, v1.1