The Armasight by FLIR BNVD is a dual-channel night vision system. With a 40° field of view (FOV), the Armasight BNVD-40 dual tube night vision optics provide a large visual field without needing to move the binoculars. The BNVD 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 BNVD can run up to 20 hours.