Bought on Ali for divine money. In the same place, I immediately ordered three additional batteries and a set of 4AA batteries for the remote control. As well as a set of antennas to increase the range and spare propellers. Screws are always worth having in stock and more. Thankfully they are cheap. If you suddenly fell out of sight - do not turn off the remote control! Take a photo of the screen and look for the flying device by the coordinates on the screen.