State of the art night vision equipment, the NVB Viking will show you the night in a whole new light. The NVB line of night vision goggles 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. The goggles specifically are designed to not use high magnification which would interfere with keeping a clear, stable image while moving. Try running with high magnification night vision goggles and youll see why they wouldnt be suitable for search and rescue, stalking, training, war games and more. These goggles are specifically designed for those activities while being affordable. A great choice for government organizations, shooters, hunters and outdoorsmen. 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; the padded head-piece stays snug and centered. These goggles provide amazing quality at a fraction of the cost of Western versions. The head-piece is detachable allowing you to use them as night vision binoculars as well. The optics are precision-ground and fully-coated. A definite BEST BUY!