After 2 previous models, a small double rotor and a large double rotor, now this model. Battery equal ordered. After receiving the first surprise: the batteries were almost charged. So about 1/2 hour charging time for both batteries and out into nature. In my opinion not suitable for Eisatz in living rooms. Initial tests in an open field but with a little wind and the helicopter was fast times 80 m away. Amazingly, he could be steered still, but came into the wind not to -> controlled Notabsturz. Then aborted attempts and new attempt in the evening in the garden with (almost) no wind. Flight Features: The helicopter was well balanced with the basic settings of the remote control. Can I think harder than flying a helicopter with double rotor but with more fun. That's why even a few crashes after collisions with trees and tomato plants. After a few reboots then battery change and then the backup battery only one crash. Did not have time time to take your hands off the remote control to scare z. B. a mosquito. Could the flight time until now not stop, but an eternity. 2 batteries are perfectly adequate for me. Processing: The remote control makes a total of cheap impression (despite LCD display), but doing it so far quite well. The location of the controls should memorize if you want night Aryans during flight times. The helicopter rotor blades are in reserve (including tail). The experience so far with the other helicopters, however, show that other things go rather broken .... In Internet plentiful spare parts are offered. Conclusion: A very good price-performance ratio. But: absolute beginners, as I was once a rather small start ... Not suitable for interiors and outdoors in windy conditions. High fun factor. All together for me definitely 5 points value.