Axion is designed for constant, hard use.A magnesium alloy housing is light and strong.The housing reliably protects the scope from shocks, drops, moisture, heat or cold.At the same effectively removes the heat from electronics, minimizes image noise and increases consistency of the device operation during long-term observation.The axion thermal monocular features a built-in video recorder; digital zoom and 8 color palettes lets the user observe their field of view more effectively.Resolution: 320x240, 50HzMagnification: 3-12xObjective: 30mmField Of View: 45 ft @ 100 ydsBattery: APS5 Li-ionWeight: 0.55 ozFocus Range: 1300 Meters