The Burris Thermal Scopes are packed with features that will help you take night hunting to a whole new level. Offering 4 power zoom, hot track, stadiametric ranging and 5 unique color palettes. 5 color palettes Stadiametric ranging 10 reticle options Hot track Manual and auto NUC Adjustable contrast Adjustable brightness Intuitive, one-hand operation IP67 2.3-9.2x magnification 35mm Objective Torque Specifications: 60 in-lbs Battery Information Runs on 18650 Lithium-ion batteries, but will accept (2x) CR123As Acceptable length for batteries is 65-68mm Avoid batteries with a protection circuit as they are typically longer than 68mm. Recommend 3400mAh for max runtime