1、Applicable Models: This drone airdrop system is specially designed for Mini 4 Pro drones. The equipment is small and light, and the installation has no effect on the drone's propellers and sensors. 2、Important Parameters: Maximum load is 100g / 0.22lb, built in battery 150mAh, charging interface is USB, charging time is 90 minutes, and standby time is 12 hours. 3、Sturdy and Lightweight: The drone delivery system is made of ABS material, lightweight, sturdy and durable. Does not increase the burden on the drone or cause damage. Easy to install and remove. 4、Safe: The landing gear can be increased by 14mm, effectively preventing debris on the ground from contaminating the aircraft or damaging the ball head and body during takeoff and landing. 5、Widely Used: You can send wedding rings, gifts, flowers to your friends, family and lovers on any unforgettable day such as weddings, Halloween, Christmas, Valentine's Day. It can also be used to throw bait in the sea, throw confetti at beach parties, throw balloons, etc., adding unlimited fun to your life. Item Type: RC Drone Airdrop System Material: ABS Weight: Approx. 126g / 4.4oz Product Size: Approx. 8.9x6.2x3.6cm / 3.5x2.4x1.4in Maximum Payload: 100g Battery Information: Lithium Battery 150mAh (Shipped with) Standby Time: Approx 12 Hours One Full Charge Can Be Activated: Approx 300 Times Self Charging Time: 1.5 Hours Control Method: Remote Control via Light Sensitive Sensors 1 x RC Drone Airdrop Device 2 x Front Stands 2 x Rear Stands 1 x Hanging Rope 1 x Charging Cable 1 x User Manual