JMT Hj F550 Hex-rotor 550mm MWC 2.1 Hexacopter UFO w/ ESC Motor Propeller ARF Set + GPS Module (No Battery&transmitter) JMT Hj F550 Hex-rotor 550mm MWC 2.1 Hexacopter UFO w/ ESC Motor Propeller ARF Set + GPS Module Not include Battery and remote controller and charger,buyer need ready by your self All Assembled,when you got package,you only need install motor with screws and propellers(cost 4mins),then insert your receiver,you will enjoy the flying. FlameWheel F550(Notice Not Made by DJI) is a multi-rotor designed for all pilots for fun or AP, it can achieve hovering, cruising, even rolling and other flight elements. This combo we provide MWC 2012 flight controller with 2.1 firmware,it also can suprisingly have this effect. It can be applied for entertainment, aerial photography, FPV and other aeromodelling activities.New design PCB board speical for F550,support standard 50mm controller board like MK,KK, FF,MWC.