Pulsar Patrol 4x50 Night Vision Monocular 74083 is a rugged Gen1 night vision scope with powerful magnification that takes your view across the night. The Pulsar 4x50 Patrol Nightvision Scope is housed in a compact and durable rubber-armored body. The Pulsar Night Vision scope is powered by two AAA batteries for up to 72 hours of independent operation. Pulsar builds the nightvision scope with an eyepiece that features a comfortable rubber eyecup and a Diopter adjustment lever. This night vision monocular is specially designed for prolonged use while in motion. The Pulsar Patrol 4x50's wide-angle field of view makes observing dynamic objects via Night Vision easy and exciting. The built-in infrared light gives you added seeing power even in the darkest of conditions. Pulsar Patrol 4x50 Night Vision Scope is made to handle many applications. From outdoor sports and night hunting, night photography and night hiking, to industrial security and military uses, the Pulsar Patrol 4x50 Monocular is ideal for a variety of professional and recreational uses including wild life observation, astronomy, boating, and search and rescue operations.