Features:100% brand new and high qualityDrones realizes long-distance transmission of items.Used for airdrop materials, outdoor rescue, express delivery, wedding flowers delivery.Specially designed for DJI Mavic 3.It can be fixed on the drones without affecting the flight.Quick release, build in rechargeable 150mah battery. Package Includes:1 Set Airdrop System Specifications:Material:ABSMaximum Load: 500gBuilt-in Battery Capacity: 150mahStandby Time: About 12 HoursOne Charge About Opening: About 200 TimesCharging Time: 1.5 HoursWeight: 82gPacking Weight: 159gPackage Size: Approx.10.5x16x6.5 cm/4.13x6.3x2.6 inchesBattery Type: Lithium-ion BatteryBattery Weight: 3.3gNumber of Cells in a Battery Pack: 1Lithium Content: 0.045g note:1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.