Feature  1.19.5 large prism viewing more clearly High-definition ranging compass telescope, built-in compass positioning, can measure the direction can be measured distance, nitrogen-filled waterproof anti-fog. 2. Built-in electronic ranging scoreboard Built-in subdivision coordinates, not only can view far, but also can measure the approximate distance of the target, full-featured, versatile. 3. Nitrogen-filled, waterproof, fog-proof and moisture-proof Enclosed waterproof structure can be floating water to deal with a variety of harsh environments to effectively extend the service life. 4.50mm objective lens with large field of view 50mm large aperture, greater light throughput, higher brightness, clearer imaging. 5.24mm wide angle large eyepiece Eyepiece size up to 24mm, the real large eyepiece design, viewing comfort, eyes do not dizzy head does not swell. 6.BAK4 high transmission prism BAK4 is a kind of refractive index higher than BK7 glass, can effectively improve the transmittance, clear imaging. 7. FMC multi-layer green coating High transmittance through the imaging sharp and transparent. 8. Binocular focusing convenient and accurate The military standard binoculars commonly used binocular focusing mode, two eyepieces to focus separately, binocular focusing more accurate.  Specification  Magnification factor:10x Eyepiece diameter:24mm Objective diameter:50mm Eye relief:17.1mm Exit pupil diameter:7.1mm Field of view: 124m/1 000m Prism type:BAK4 Diameter of prism:19.5mm Lens type:All-ptical Glass Lens Lens Assembly:Six pieces, four sets Coating of Lens:FMC multi-layer green coating Waterproof grade:IPX6 Weight:960g Product size:150mmx190mmx 67mm