Note DJI O4 Pro system is not included This is a kit and needs to be assembled by yourself Installation instructions can clink here Descriptions The new O4 Pro upgrade kit is suitable for users who own SpeedyBee Bee25 DJI O3 to upgrade to the O4 Pro version Specification Brand SpeedyBee Model O4 Pro Upgrade KitCompatible Models SpeedyBee Power Version 4S 2 5 Inch CineWhoop RC FPV Racing DronePackage Included 1x Upgrade Kit