Yukon Tracker 2X24 night vision binoculars. 2X magnification with a 600' range and 30 degree field of view. Generation One. 3 volt lithium battery required (not included). Protective lens caps allow daytime use. Dual eye diopters. Central focusing. Built in powerful "Pulse" IR system infrared illuminator. Weather resistant and includes carrying case, neck strap, and lens cleaning cloth.