Compact and lightweight binoculars with built-in IR illuminator, our PB5 are sturdy, made from all-aluminum and feature high-quality all-glass optics with multicoated lenses and multi-lens elements to provide best possible image under any light conditions. Built-in IR illuminator allows for use in total darkness. Built-in light sensor protects the unit from exposing the sensitive internal components to the bright light. Accessorize your PB5 with optional Extended Range IR Illuminator.