The Trijicon SkeetIR x is a miniature, multi-purpose thermal optic that is small enough to use as a helmet-mounted observation device, yet powerful enough to use as a clip-on or stand-alone thermal riflescope. Features handheld, helmet-mounted and weapon-mounted configurations; consistent with all other Trijicon OASYS products to help reduce training time and make it easy to use in any situation. Weight 8.60 oz Controls Manual Dimensions 4.0" x 2.4" x 1.7" Battery Life 2 hrs Battery Size CR123 Field Of View 28.1 Degrees Magnification 1.2x Infrared Illuminator Yes