15X Magnification - Bring distant objects closer than ever; Exceptional Clarity - Bak-4 glass with Phase Correct, dielectric coating for precise resolution and true-to-life colors; Low Light Visibility - Maximum light transmission for low-light conditions; Rugged Construction - Built to withstand the toughest environments with a shockproof body and durable rubber armor; Waterproof - Nitrogen-filled for reliability in all conditions; Tripod Adapter Mount - Achieve steady observations of fine details; Comfortable Design - No-slip texturing, a cushy neoprene neck strap, and metal eyecups for eye relief adjustment