ROJ1004 Features: * Monocular * Long range viewing up to 330 yards (300m) * 20pct more energy efficient than the competition * 70-hour battery life * Fully multicoated optics * Reliable and easy to use * Two built-in 0.25" tripod sockets * Auto-shut off against sun light exposure * Integrated powerful infrared illuminator * Built-in weaver rail for mounting accessories * Water intrusion: Meets IPX4 rating * Magnification: 3.4x * 1.97" Objective lens diameter * FOV at distance 200 yards (ft/m): 120 / 37 * Focus range (yards): 1 to infinity * Diopter adjustment (D): +/- 4 * Detection distance (approx.) (yard/m): 330 / 300 * Estimated battery life w/out IR (hour): up to 70 * Operating temperature (°F/°? ): -22 to +113 / - 30 to +45 * Humidity: Up to 93pct * Weight (oz/g): 18.3 / 520 Specifications: * Power supply options: AA 1.5V battery (two) Dimensions: * Dimensions: 2.56"" H x 7.79"" W x 3.94"" D