WLtoys V383 “Gallop“ 500 Variable-Pitch Quadcopter Test Flight 2

This seems to be a video of WLtoys testing their upcoming V383 Gallop. Unlike Invertix 400, this multirotor does not change the direction of the rotors to support 3D moves; it changes the pitch of the rotors, just like Curtis Youngblood Stingray 500.