The eotech mononv monocular is an image intensified, night-vision device built to the same rigorous standard (mil-std-810g) as the military an/pvs-14 system.This multi- purpose monocular is collimated for operation as hand-held, helmet/head-mounted or weapon mounted.Lightweight and robust construction combined with superior optical characteristics utilizing esa gen 3 white phosphor tube technology, providing maximum target detection and recognition range.Field Of View: 40 DegreesGeneration: ESA Gen 3 White PhosphorBattery: AAWeight: 10.60 ozDiopter Adjustment: -6/+2Battery Life: Up to 60 hrs