The AGM NVG-40 is a dual-channel night vision system. The 40° field of view provides a large visual field without needing to move the binoculars. The NVG-40 uses advanced multi-coated optics and is built to last with a compact composite housing. Operating from a single AA alkaline battery or CR123A battery, the NVG can run up to 20 hours. Also equipped with an integral infrared illuminator for reading in the dark.