About 40 seconds into this video i clicked the "return to home" button - instead (as you can see) it flew off and crashed. I also hit the "lock" button after the crash which also did not work, i finally had to pull the battery (after all the propellers broke off). I am done with this piece of crap non-working product. 3 Android g-boxes, 2 IOS, 2 drones - all crap.