Product Description Whew 10x42 Compact HD Professional Binoculars Whew 10x42 Compact High Powered Binoculars for Adults are perfect for birding watching,traveling,camping,hiking,hunting,stargazing,concerts sports and other indoor or outdoor activities. Designed with 10x high power magnification and 42mm wide-angled big objective lens, large eyepieces offer you 307ft/1000yds large field view when viewing the world, provide HD vision, brighter view and crisp images, enjoy the beauty of the world. Specifications : Magnification : 10x Object diameter : 42mm Lens Coating : Fully Multi-Coated Ocular lens diameter : 18mm Focus System : Center and right eye Eyecups : Twist-Up Field of View : 307ft/1000yds Prism Glass : BAK4 Water/Fog Proof : Yes Net weight : 530g/1.17lb Package Includes : 1 X Binoculars 1 X Carrying Bag 1 X Neck Strap 1 X User Manual 1 X Cleaning Cloth 1 X Objective Lens Covers Portable and Easy to Focus : Close your right eye and sight an object with your left eye, rotating the center focus wheel until the image is sharp and clear. Open your right eye and close your left eye. Rotating the right eyepiece until the object sighted is sharp and clear. For Please hold the binoculars in the normal viewing position