Designed for demanding nighttime applications, the ATN PVS14-3P is tough. light and adaptable. Based on US Military design, it's able to be operated as a handheld, or as a head/helmet-mounted unit for hands-free usage. Originally designed for the U.S. military, this night vision monocular is the highest quality in optics, design and functionality. Automatic brightness control and a bright light shutoff give you performance at its fullest even in unstable lighting. The industry leading ITT PinnacleTM Image Tubes utilize a gated power supply providing truly outstanding performance in high- and/or light-polluted areas with a gated power supply to minimize any “Halo” effects. The ATN PVS14 is an outstanding choice for professional night vision applications.