1. It can be expanded to 100 degrees after using a wide-angle filter
2. Anti-fouling, anti-scratch coating
3. Non-destructive quick disassembly and assembly
4. Ultra-light and strong, stable flight
5. Optical glass, high-definition grinding
6. Frame material: lightweight aluminum
7. Mirror material: multi-layer coated optical glass
8. Size: about 19.8 x 15.8 x 7mm
9. Note: the drone in the picture is not included in the shipment