The Tianying's Patrol 2x24 night vision scope has a genuine design well complemented with improved optical parameters. light- weight, compact dimensions and durable rubber armored housing, tianying's exclusive and advanced automatic hight-light cutoff function, a diopter adjustment lever are just some features of the Patro 2x24. The device is equipped with an IR Flashlight for observing images when there are insufficient levels of natural illumination at night (no Moon and stars) or in complete darkness (in a fully isolated room, basement etc.).