It is really really nice. Sorry to ask some stupid question, what is the range about the control? Seems like you have flew very very long way! Thank you very much for sharing.
Thank you Henry, I actually want to ask , How far can you control the quadcopter? It is like 2km ? what happened if it is out of range, can the quadcopter come home itself? Sorry about all these stupid question, because I really want to buy one too.