Specifications: Model: 10-30x25 Magnification: 10x -30 times Eyepiece diameter: 13mm Objective Diameter: 25mm Prism Category: bak4 Coating: multilayer broadband green film Size: 127mm × 32mmX32mm FOV: 10 times: 3.5 ° ~ 30 times: 2.0 ° Focus Mode: stretch or rotate the focus (two ways) Anti-skid technology: Support Waterproof Technology: Not supported Folding technology: support Zoom function: Support Material: Aluminum Color: Black Gross weight: 170 g Weight: 122 g Environmental parameters :( telescope best storage conditions) Humidity: 65% or less Tripod interface: Support Purpose: Travel trips, outdoor sports, with the look with the use. Section near the focal length of up to 0.5m, up close view of development is quite an advantage. Compact, lightweight, and can carry at any time. How to Clean Your Binoculars GET THE DUST OFF BEFORE YOU RUB Youve seen someone do it. Breathe on his binoculars eyepiece and then rub the glass with the corner of his shirt. Poor guy, he never knew he just degraded every image he would ever see with that binocular again. How to Ruin BInoculars WRONG WAY The right way to clean binoculars Step 1 Lens PenRemove all the loose dust from the binoculars lenses. Brush with the brush end of a lens cleaning pen. The brush is soft and wont harm the glass or coatings. (It may help to hold the binocular upside down so the dust falls away.) Or blow with a can of air (from photo store). Dont use your breath — breath includes minute droplets of water that will spot your lens. Step 2 Moisten a Q-tip with water or lens cleaning solution and float off any remaining dust. Or if your binocular is waterproof, you can actually run it under the tap (but dont squirt it hard). DO NOT use fluid designed for cleaning eyeglasses or windows, as it may attack the coatings. Step 3 Now that the dust is gone, you can wipe the lens with lens tissue, a special micro fiber lens cloth, or a very soft cotton cloth (like a piece of a clean old cotton undershirt). Do not use paper towels or facial tissue, as these are too rough. They often include wood fiber that will scratch your lenses or the coatings on the lenses. Be gentle. Remember! More binoculars have been ruined by wrong cleaning than by being dropped on the sidewalk.