Elbit Systems of America PVS-31D 1x Light Weigh Binocular System w/Variable Diopters White Phosphor Black. It is designed for use by the individual soldier in a variety of ground-based night operations and is manufactured according to the USMC SBNVG performance specification. Specifications for Elbit Systems of America PVS-31D 1x Light Weigh Binocular System w/Variable Diopters: Manufacturer: Elbit Systems of America Night Vision Generation: 3 Length: 4.2 in Weight: 500 g Magnification: 1 x Objective Lens Diameter: 25 mm Color: Black Battery Life: 24 hours Width: 4.1 in Height: 2.8 in Focus Range: 9.7 in to Infinity Field of View Angle: 40 degrees Battery Type: AA Battery Quantity: 1 Diopter Adjustment Range: -6 - 2 dpt Features of Elbit Systems of America PVS-31D 1x Light Weigh Binocular System w/Variable Diopters Gen 3 Gated Pinnacle tubes Industry-leading close-focus technology Image intensifier tubes serviceable at the unit level Vertical viewing ability Available in fixed or adjustable diopter lenses Integrated IR illuminator Manual brightness adjustment available Submersible up to 20 meters Built to meet requirement standards for NSN 5855-01-685-2918 Package Contents: Elbit Systems of America PVS-31D 1x Light Weigh Binocular System w/Variable Diopters Helmet Mount Wilcox G24 Operator's Manual Operator'sInstructuion Card Padded Carrying Case Eyecups Neck Cord Shoulder Strap Lens Paper Elbit Systems of America 5032JYHP45-1: PVS-31D 1x Light Weigh Binocular System w/Variable Diopters White Phosphor Black