Celestron's Trailseeker features all the characteristics you desire in a quality binocular. Avid outdoor explores appreciate the superb optics which features dielectric coated BaK-4 prisms for exceptional image quality and views. The Celestron TrailSeeker 10x32 binocular provides high-level outdoor performance, making them ideal for the keen birders or hunters. Phase and dielectric coated BaK-4 prisms dramatically increase light transmission through the prism system for unrivalled image quality and views. TrailSeeker offers a better close focus along with a wider field of view. The lightweight magnesium alloy frame is tough and completely waterproof for use in any weather condition.