DESC: Night Owl Optics - Explorer Night Vision Binocular combines optical excellence and mechanical precision with compact dimensions. Its compact shell houses two high-performing intensifier tubes cradled inside Night Owl Optics® unique steel stringer system, adding precision and control. Additionally, integrated with the unit is a refined and powerful infrared illuminator, which provides clear and bright viewing in complete darkness. The NOXB3 gives users a new level of operational reliability with such innovations as a low battery indicator and extended Infrared operation when the battery is loosing power