The Crimson Trace HorizonLine Pro Laser Rangefinding Binoculars combine Best-In-Class optical magnification with high quality laser rangefinding. No need to carry multiple units into the field. The CT T-OLED display is crisp, clear and easy to use and it is packed with the most needed features. Features CT radiant ambient light sensor- the ambient light sensor automatically adjusts reticle’s brightness to the surrounding lighting condition; 5 manual brightness settings; large top-mounted function button; auto-shutoff function. Includes bino harness and Biby case.