State of the art night vision equipment, the NVB will show you the night in a whole new light. The NVB line of night vision binoculars is compact, lightweight and provides a wide field of view. The water resistant body increases the binoculars' versatility, while the central focusing knob and fixed eye span distance provide comfort and reliability. The soft, one-piece eyecup prevents external light distortion and light leakage from the device, allowing the user to remain hidden in the night. The flip-top lens cap is an additional feature that allows the lens cap to be moved out of the way with a twist of the wrist. Great for commercial and sport fishing, hunting, general observation, law enforcement, search and rescue and many other outdoor activities. They have the best generation 1 image intensifier tubes we have seen, with very high resolution, and very little distortion. Their light weight and ergonomic design make them very comfortable to use. These binoculars provide amazing quality at a fraction of the cost of Western versions. The optics are precision-ground and fully-coated. A definite BEST BUY!