FLIR MNVD-51 Gen 2+ HDi Night Vision Monocular, The FLIR MNVD-51 Gen 2+ HDi Night Vision Monocular is a multi-purpose night vision monocular. It can be hand held, head mounted, helmet mounted or weapon mounted. With a 51° field of view, it provides a large visual field without needing to move the monocular. The MNVD uses advanced multi-coated optics and is built to last with a compact composite housing. Operating from a single AA alkaline battery or CR123A battery, the MNVD can run up to 40 hours. FEATURES:- 2nd-Generation HD Intensifier Tube Automatic Brightness Control 1x19, f/1.26 Lens System 51° Angle of View Integral IR Illuminator Minimum Focus: 9.8" Battery Status/IR-on Indicators Bright Light Cutoff/Auto Off Function