XK350 is a 3D Stunt Quadcopter that can perform more aerobatics and stunts than a standard Quadcopter and even can fly inverted. XK350 Air Dancer Stunt Quadcopter achieves all those 3D stunts by reversing the motors instantly in the air.



Curtis Youngblood Stingray 500 Quadcopter or WLToys V383 Quadcopter. When it comes to this question, its hard to tell the difference as the WLToys V383 looks exactly the same as Curtis Youngblood Stingray 500 Quadcopter.