5000M/50000M Portable Binoculars 500X25 High Magnification HD Mini Straight Tube Outdoor Photography Telescope Specifications: Mode: 500*25 MaterialRubber and metal Prism material: BAK4 Lens coating: Blue film eyepiece, Green film objective lens Field of view: 5000M/50000M Size11*4.5*7.7cm ColorBlack Feature: 1.Life waterproof,which can better extend the service life of the telescope.Easy to deal with any harsh environment. 2.BAK4 prism and multi-coated lens for improved light transmission and image clarity. 3.Central focusing knob for smooth operation. 4.Broadband green film coating to increase light transmittance and make the imaging color fuller. 5.Lightweight and compact, good for camping, hiking, concerts, bird watching, hunting, traveling, golfing, sporting events and other outdoor activities. Note 1. Keep a proper exit pupil distance with the eyepiece. If the stickers are too close or too far away, you will feel dark shadows in the field of view when observing, and you will not be able to get a complete circle of vision. 2. Adjust the interpupillary distance. Adjust the distance between the two lens barrels to match the pupil distance of your eyes, so that the images can be seen to overlap. 3. Focusing. Slowly turn the focus wheel to focus and adjust the sharpness! 4. Do not use the telescope to observe the sun directly, as this will cause serious damage to the eyes or even blindness. Package Included: 1 * Binocular 1 * Instruction _x000D_ _x000D_