Its pros: Friends, well, this is a children's toy! And the price of 2500r is the price of a toy. At the same time, it hangs perfectly in place, headless allows a 5-year-old child to βflyβ, flies higher than the roof of our 14-storey building (!) and at the same time also shows pictures on the phone! This is very cool :) Cons below: Yes, it doesn't fly fast. Apparently because of the pressure sensor, which just allows you to hang. The 500mAh battery allows you to fly for 7-8 minutes. But on sale there is 850mAh for 350r. We took two of these additionally :)