Features: 100% brand new and high quality Drones 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:ABS Maximum Load: 500g Built-in Battery Capacity: 150mah Standby Time: About 12 Hours One Charge About Opening: About 200 Times Charging Time: 1.5 Hours Weight: 82g Packing Weight: 159g Package Size: Approx.10.5x16x6.5 cm/4.13x6.3x2.6 inches Battery Type: Lithium-ion Battery Battery Weight: 3.3g Number of Cells in a Battery Pack: 1 Lithium 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.