1.Two color range-finding reticle 2.Stabilized power supply 3.Low battery indicator 4. 2.5X50 night vision goggles/scope Specifications:Image Tube Generation1+Magnification, x2.5Lens Diameter, mm50Field of View, degree10Resolution, lines/mm35Range of Detection, m200Diopter Adjustment, D±3Power Supply, V2xAA (3V)Estimated battery life without IR under +20°C/68°F, hour24/70Eye Relief, mm45Operating ...