10-30x40 Zoom Monocular with Bak4 Prism Dual Focus High Power Compact Waterproof Telescope Fit Adults for Hiking Hunting Camping Bird Watching Best Gifts for Men,(black) The product is shipped based on the color or size of the main image of the product page. 10-30 x 40 high-performance magnification Enhanced 10x to 30x magnification, providing wider, clearer, and brighter scenes in your eyes. Adjust the magnification of this zoom monocular according to your needs, it will give you a visual fidelity to see the wonderful world.Improved Big and Comfortable Lens and Eyepiece: The monocular telescope has used BAK4 prism with FMC green film and HD blue film, improved 20mm eyepiece lens and 40mm objective lens, expands your horizons and does not have any restriction on vision.Waterproof fog design Made of aluminum alloy and rubber material, high purity nitrogen is filled with the compact monocular optics to prevent dust from getting into the monocular. So that the HD monocular is waterproof and fog-free, for any weather and any environment.Amazing crystal clear vision: For dual focus design, high light transmittance, the focusing spotting scope can bring you brighter and high contrast images. The eyecup can be rotated upward to deeply focus the view for yourself, and then adjust the focus setting and zoom setting until the view becomes clear.Compact size with a wide view: The high-performance monocular is only 153 mm high, super compact and enough to be pocketed, convenient to carry and carried anywhere. Wide field of view: 128m / 1000m, will show you a clearer and wider view, good for bird watching, hunting, hiking or sightseeing, etc.