Using the GEPRC Vapor X5 HD O4 Pro FPV Drone is easy. First, make sure you've charged the recommended 6S LiPo 1300mAh - 1800mAh battery. Connect the battery using the XT60 connector. You can choose your preferred receiver from the options provided. When flying, the drone's GEPRC - tuned PID settings will give you a smooth experience. For different flight needs, pick either the Wide X or DC model. Safety first! Fly in an open area away from people and obstacles. Avoid flying in bad weather like heavy rain or strong winds. After each flight, check the propellers for any damage and replace them if needed. Clean the lens gently to keep your images clear. Also, store the drone in a dry place to prevent any moisture damage. Periodically check all the screws and parts to make sure they're tight and in good condition.