The Night Vision Depot Binocular Night Vision Device with Single Gain Control (BNVD-SG) has been redesigned to be lighter while increasing performance. This dual tube night vision goggle now operates with a single gain control knob, which the user can utilize to adjust the tube brightness (gain) lower to compensate for overly bright conditions or to increase the gain under extreme dark conditions. Available with Gen III Pinnacle Commercial and Mil Spec tubes.