The agm rattlerv2 50-640 thermal scope features a 50mm germanium lens, a 640x512 resolution thermal sensor and a 2.5x base magnification with a detection range of up to 2600 m/yd.The rattlerv2 50-640 includes features such as an upgraded battery compartment that accommodates a rechargeable battery extending run time to 9 hours; 12-micron thermal sensor that has the sensitivity rating (sub-20mk); shot activated recording; simplified menu layout; 10 reticle options with multiple zeroing profiles for various calibers and rifles; raised 5-button layout for easy navigation, even with gloves.Includes a custom adm qd mount for easy removal and reattachment, two rechargeable batteries, battery charger, usb cable, lens cloth, owners manual and carrying case.Resolution: 640x512, 50 HzMagnification: 2.5-20xObjective: 50mmField Of View: 8.80 x 7 DegreesBattery Size: Rechargeable Li-ionWeight: 1.18 lbsFocus Range: 10mm to InfinityDiopter Adjustment: -5/+5Battery Life: Up to 9 hrs