1. Power supply: you can use a power bank to supply power directly or use 6 AA batteries (batteries not included)
2. Effective viewing distance: 400 meters
3. Objective lens diameter: 30 mm
4. Working voltage: 9 (V)
5. Magnification: 4 times
6. You can use the AV interface to link external display devices
7. Scalable TF card up to 32G
8. FMC multilayer coating objective lens, clear imaging
9. Weight: 600 grams
10. Dimensions: 206x138x58 mm