Brunton Eterna Highpower 15x51 Binocular Brunton Product Includes Binocular Great for Camping Binocular, BinoGlove , Neoprene neckstrap, E-Triad BaK-4 prism glass--State-of-the-art phase coating--AL reflective coating--Emerald Fire full multi-coating--Multi-step eye relief system Waterproof/fog proof--Nitrogen filled--Alloy frame w/ergonomic body armor--Tripod/monopod compatible--Limited lifetime warranty Tripod/monopod compatible--Power 15X--Twist-up eye relief types; Multi-step Limited Lifetime Warranty