3304 63-15X50 Prism Binoculars Hight Power Waterproof Outdoor LLL Night Vision
Uses and features 1. Observing terrain, searching for targets, and commanding troop actions. Determine the direction angle, high and low angle, and correct the impact deviation. When the height and width of the ground object (target) are known, the approximate distance can be calculated according to the density formula or measured by line-of-sight differentiation. The… Read more 3304 63-15X50 Prism Binoculars Hight Power Waterproof Outdoor LLL Night Vision