Armasight TAVT66Mn9Side101 Sidekick 640 Thermal Monocular Black Anodized Hardcoat 1X 19mm Multi Reticle Zoom 1X-4X The Sidekick 640 Is a Fully Multi-Functional 12-Micron 320 Thermal imaging Monocular. Weighing Under 210 grams, The Sidekick Can Be Used as a Handheld Mini-Monocular Or Can Be Headset/Helmet Mounted utilizing The Built-In Mini-Rail For Hands-Free Operation. Features a High Definition 1024X768 OLED Display; Three Button Controls That Allow For Easy manipulation In The Field And offers One-Touch In-Unit Video recording; Multiple Color palettes; Image Detail Enhancement; Dovetail Mini-Rail Included For Helmet Mounting (With Optional Mount); USB Video Stream; USB-C Interface For External devices; Compass; Battery Status Indicator; ULTEM Composite Body And Ergonomic Design. Includes Battery, USB-C Cable, Len Cloth, Soft Case And Product Manual. Magnification: 1X Objective: 19mm Field Of View: 24.16 X 17.37 Degrees Battery Size: Cr123A Focus Range: 709 Meters Diopter Adjustment: -5/+5 Battery Life: 1 hr