Of all those I had in my possession, it is most difficult to control. The malfunctioning gyroscope: hover the helicopter alone advance, and the "trim" (setting the rotation) goes awry with time. Then he lacks power: the camera must weigh him heavy, and when the battery begins to descend (2 minutes with the camera) the helicopter can not take off and virtually no rise. As for the camera she is really low resolution, and the sound is missing. In short I do not recommend in terms of piloting, the "first prize made in china" are much more manageable.