For helicopters:
The helicopter is very stable, there was quite a lot of metal (aluminum?) Used, which leaves a solid impression. The helicopter can be controlled super easy and is also suitable for beginners. Accidents he puts away loose when but a rotor blade breaks, there is spare. The helicopter flies as the 7-8 minutes and then must be charged for 20 minutes.
But I recommend to order each one Netteil and USB charging, you pay only 6-7 euros to and it is much less complicated than today using the remote control.
I can only recommend the helicopter, for the price there is nothing better!