ATN PS31-3HFW Black Night Vision 1x Gen 3 Auto-Gated White Phosphor The PS-31 BNVD has independently pivoting tube housings that allow the operator to run the goggle in a binocular or monocular configuration. Using two tubes at once allows the eyes to create depth perception and increases the ease in maneuvering terrain and obstacles as well as operating devices such as control panels and door knobs. Monocular configurations allow for ease in transitioning between various lighting conditions that often occur on the battlefield and cause operators to switch between night vision and weapon-mounted optics. Another benefit to the pivoting tube housings is the ability to mount the flatten goggle against the front helmet surface when stowed. The ability to pivot the tube housings against the helmet surface creates an overall lower profile, increasing operator safety and equipment life. Includes instruction manual, lens tissue, soft carrying case, helmet mount and one CR123 battery. Brand ATN Category Night Vision Handhelds Model PS31-3HFW Magnification 1x Color Black Field of View 40 Degrees Resolution 64-72 Ip / mm Dimensions 4.4"x 4.15" x 3.4" Battery Size CR123 Proofs Water / Weather Resistant Battery Life Up to 300 hrs Generation 3 Auto-Gated White Phosphor Infrared Illuminator Yes Weight 1.28 lbs Diopter Adjustment -5 / +5