Yukon engineered the NVMT line of night vision monoculars to be lightweight, compact and surprisingly affordable. It's perfect for the outdoor enthusiast to take from a sporting event to a hunt.The NVMT's newly developed lenses maximize light amplification through improved wavelength/contrast characteristics, and Yukon's exclusive PULS system Infrared (IR) Illuminator provides infrared lighting for an enhanced image, while staying invisible to the human eye and animal's eyes. The PULS System utilizes quick IR energy bursts that penetrate further to increase distance, visibility and image quality, without significant battery drainage or untimely IR burnout. The ergonomically designed, durable, rubber armor body fits comfortably in the palm of your hand and can fit in your pocket for those quick escapes. It's perfect for travel and prolonged use.The NVMT Sea Wolf series is capable of being submersed in at least 3-feet of water for at least 24 hours without any damage.