The BX-4 Pro Guide HD Gen 2 is an upgrade in both form and function. This latest version of our best-selling binocular uses high-quality glass and improved lens coatings to deliver the resolution, clarity, and glare reduction diehard hunters and shooters demandno matter the time of day, youll be able to conquer the challenges of harsh light and bright reflections. Along with its outstanding optical system, the BX-4 Pro Guide HD Gen 2 includes swappable Form-Fit eyecups thatll keep your eyes fresh through hours of hillside glassing.