This product is counterfeit, despite that the seller have assured me otherwise. This is a not a TopSelling X6 X4 Hubsan, he finished in the trash without even having stolen once (burning smell from power, starting impossible: 2 engines burned) ... To have been several Hubsan the hands, the infringement is more than missed! The seller ships its parcels in trash bags, declaring a market value far too low, and I was forced to fight him and threatening him for one week prosecution to obtain a low refund ... to leak! !!