The Holosun DRS Digital NV/IR Illuminator Night Vision Digital Reflex Sight is a digital reflex sight with a built-in thermal overlay. This optic sight other than having thermal capabilities is also packed full of features:Feature Set:Red Dot Sight w/ Fusion Thermal Overlay50FPS Overlay Refresh RateDigital Zoom Up To 8xModes: White Hot, Black Hot, Highlight, Outline, FusionMultiple Reticle System (MRS): 65 MOA Circle & 2 MOA Dot; 2 MOA Dot; 65 MOA CircleCross or T Style Thermal Vision ReticlesIP67 Certified WaterproofSensor Resoulution : 256 x 192 pxReticle Brightness: 8 Daylight & 4 Night Vision Compatible SettingsBattery Life: 20 HoursWindow Size: 1.25 x 0.98 InchTakes 2x 18350 Batteries