Make the night your ally with the Firefield® Tracker 3x42mm Night Vision Binoculars. Fully multi-coated optics and Gen 1 image and resolution technology gives you a 165m range of clear viewing in total darkness. A built-in IR infrared illuminator emits an energy-efficient pulsing frequency that prolongs the battery life. Eclipse Lens Covers are easily clipped back against the body of the binoculars and rotated out of the user's viewing area eliminating lens cap hassles. Pin holes in the lens caps allow the Tracker to be used in the daytime as well. Dual tube design for better depth perception. Dual diopter adjustment and central focusing knob for simple operation. Lightweight rubberized body make the Firefield Night Vision Binoculars rugged and easy to carry.