hd 35x50 lll night vision telescope mini pocket portable optical professional single hunting outdoor travel hiking camping zoom telescope

product parameters: magnification: 35 times objective lens diameter: 40mm eyepiece diameter: 20mm prism system: roof ridge prism focus system: central independent focus prism system: bak4 line of sight: 1200/9600m objective film coating: fmc multi-layer all-directional green film lens: all optical glass size: 160 * 68 * 55 mm