We bought it for our nephew 3 weeks before his birthday, checked that it would take off and the control worked. Directly on his birthday, he took off at home a couple of times, they carried him to check on the street and then he no longer turned on and showed no signs of life (when turned on, the diodes do not light up). Did not fall (and not where it was), did not overheat. What happened is not clear. Because it was already after the 14-day warranty, they took it apart - everything is fine there. The battery provides power, but nothing works. And this means the main board, which is soldered handicraft. There is only one conclusion - it was necessary to take a model with a guarantee of at least 6 or 12 months. And this garbage for 3 thousand, which did not work and the manufacturer uses the path for 1 day. I donβt care about the device, but the child is upset.