Useless thing. I understand it's easy because of the flight; Mine, however, lasted less than 2 minutes. Charged and switched on according to the instructions. The first flight was fine, but after about a minute everything went wrong. It started spinning and flying out of control. It hit the shelves and the ceiling and BAM, it crashed and erupted in smoke and flames everywhere. Not literally on fire, but it crashed and stopped working at 1:45. Not sure what all the 5 star reviews are about but we got a lemon.