CZI TH4 V2 Drop Kit For DJI Matrice 210 V2 / M300 RTK Drone1. The TH4 Throwing Hook Drop System V2, weighing 320g, 40kg payload, can complete four missions in one flight. 2. Through the DJI SkyPort V2. 0 interface, it can be directly mounted on the DJI M210 V2 and M300 RTK drones for emergency rescue, material delivery, and other work 3. Optimize the use process, reduce the failure rate, and use a variety of abnormal handling mechanisms to prevent safety accidents 4. No third party controller is required,