Why we use the Drone Air Drop Device? Phantom 4 Advanced Airdrop is designed to provide a light weight and easy-to-use dropping experience. It allows you to drop anything (Did’t Exceed the Max Load Weight) you want from your drone and at any range your drone can reach. How does it works? -The Phantom 4 play-road is controlled by the drone arm light, the drop device will drop a payload when turn the Phantom 4 Advanced/Professional drone lights on. How to set the One-Clip Switch Buttons? You need to set the lights control function button(the custom button in on the back of your phantom 4 controller) on DJI GO app before using your Phantom 4 Release device.(Please refer to the Product Picture) Specifications： Battery Capacity: 3.7V 400MAH Max Loading weight: within 400g recommended (Depends on your drone's maximum carriage weight) Battery Operating Time : 410 hrs (Standby) / 3.5 hrs (Continuous movement) Battery Charging Time : Less than 60 minutes Chargeable Input : USB 5-pin Operating Temperature: -4℉ to 122℉ Note: - DJI Phantom 4 Drone is NOT included! - This Device Alone can hold up to 1-1.2kg play-load, but the Phantom 4 drone can probably lift only 300-400gr to keep it safe and usable, you can probably lift more than that but it's not recommended. - Before using it on your drone, please test the play-road by opening and closing the clip pin , to make sure it works smoothly when drone flying. - The Target will be difficult to reach under strong wind than windless days. Packing List: 1x Set of Phantom 4 Drop Device Kit