I was quite annoyed by the part, because I had great difficulty to control it. The quadricopter was not in the air, although in my living room 26m² is no wind and I have no leverage except the gas contacts at the spark. The most difficult I found it to a lever to open the throttle and steer at the same time and to think differently when the thing changes direction, because unfortunately I came quickly to my limits. For children and young people which is certainly not a problem, but for a 50-year-old like me and extremely difficult almost unmanageable. :-( The plastic frame is Luckily very flexible and is at least in the apartment when it crashes on the carpet times not broken. After the 6th battery charge I gave up. Speaking of battery, a charge lasts only about 5-6 minutes which had me a little too little and always invite about a 3/4 hour, the annoying. That's why I sent him back. I prefer to play with a 3-channel mini-helicopter with remote control in metal version, left the throttle and steer to the right is easier for me. :-)
