Happymodel Crux35 4S HD Freestyle Racing Drone DJI Runcam Link Wasp Nano FPV camera system.   The Happymodel Crux35 is an ultra-lightweight 3.5" drone by Happymodel is an excellent micro racing drone that comes with the CrazyF411 flight controller, EX1404 brushless motors, and the RunCam WASP Hi-Def system to give you a great flying experience!