These Tracker 3x42 night vision binoculars have 3.0x image magnification and a 20° field of view. Fitted with a single IR illuminator for use in very low light conditions. Fitted with two high grade Gen 1 image intensifier tubes and colour and gain-matched for optimum performance. A one-piece wrap-around eyecup stops external light intrusion. The binoculars are powered from a single 3v Lithium CR123A battery (not included). They feature green and red LEDs depending on the active features and come with a detachable neck strap and a soft carry case.