After unpacking the box I found that the drone has almost no brain. Unless you are an electrical engineer, stay away from this material. In my case, the transmitter works (I see signal spikes on the RF monitor), Wi-Fi and camera are fine (I can see the image on the mobile app), but the drone cannot fly. After looking into this, I found that there was a problem with the microcontroller on the motherboard of the drone itself. Either its IO buffers are partially dead or the firmware was flashed incorrectly, but it doesn't respond to commands at all. In general. If you need a cheap Wi-Fi camera module, 4 working motors, 8 small plastic blades and a (not so good) battery for your DIY projects, by all means go ahead. But if you don't want to be disappointed, stay away!