For DJI Mavic 4 Pro STARTRC Air-Dropping System Thrower Parabolic with Expansion Bracket (Black)Features1. The remote control drone delivery device is specially customized for DJI Mavic 4 Pro drone. It has a two-in-one design of expansion bracket and delivery device. The upper part can be used to carry small items such as sports cameras through the 14 male screw on the expansion bracket, and the lower part can be used as a delivery device to deliver objects, realizing dual play. 2. Light-sensitive setting, delivery can be directly controlled by the remote control. Use the remote control to control the drone fill light to deliver items. Turn on the drone fill light to start delivery, and turn off the fill light after delivery. The delivery distance is the same as the drone remote control distance. 3. The recommended MAX load is about 480g (loading items + delivery items need to be less than 480g, and the load range is 450-480g). The built-in battery capacity is 50mAh, which can be fully charged in half an hour. After full charge, it can be used about 400 times. 4. Easy to install and disassemble, fixed on the fuselage through the mounting bracket, the delivery device has a card position to fix it, it will not shake or loosen, and will not block the drone visual positioning sensor. The whole set weighs 65.5g and will not affect the flight of the drone. 5. It can be used for advertising, bait throwing, gift throwing, wedding flower delivery, ring delivery, food delivery, field supplies rescue, family reunion, Halloween, Christmas, Valentine Day, birthday party, beach party and other scenes, adding infinite fun to life. Note: When used with the expansion bracket, it is normal if the remote control has an obstacle avoidance prompt.Package List1. Dispenser x 1 2. Charging cable x 1 3. Ring x 3 4. Dispensing cable x 1 5. Stud screw x 1 6. Silicone gasket (food grade) x 2 7. Instruction manual x 1