10-30x40 Zoom Monocular with Smartphone Holder and Tripod, FMC and Bak-4 Prism Dual Focus High Power Compact Waterproof Monoculars for Adults Bird Watching Hiking Hunting Camping …

10-30x40 Zoom Monocular Product Features Magnification: 10 - 30 Times Objective lens: 40mm Eyepiece diameter: 20mm Focusing system: Dual focus Field of view: 350ft/1000yds Prism and material: Roof prism, BAK4 material Optical coating: FMC coating View Angle: 30x-2.6°~ 10x-4.2° Product weight: 0.33 lbs Product size: 4.7 x 1.6 x 1.6 inches About the Phone Holder and Tripod The included new version smartphone holder is compatible with almost all smartphones on the market. Tripod threads hole/Brass screw hole is built-in at the bottom of the monocular, the high-quality tripod can be stretched, and the installation is effortless. Operation Steps 1: Twist-up eyecup to adjust: Adjust eyepiece to raise the cup to appropriate height. (Keep the eyes and eyepiece lenses at the best distance to prevent the eyes get blurry lens) 2: Focus adjustment: Eyes close to the eyepiece, the objective lens at the target scene, and then the telescopic lens tube completely pulled out, clockwise slowly turn the focus handwheel until you see a clear target so far. 3: Zoom adjustment: Slowly adjust the magnification adjustment ring. Adjust the required magnification, and then fine-tune the focus hand wheel, until the target becomes clear so far. Maintenance and Precautions 1. Do not use this product to directly observe strong light sources such as the sun, otherwise, it will cause permanent eye damage! 2. Try not to touch the lens with your fingers. To wipe the lens, please use a clean and soft Wipe the lens cloth and flick to remove dust. Or wipe gently on the lens surface to avoid scratches caused by hard objects. 3. Clean the surface stains with a cloth dipped in a small amount of water. 4. Do not bump or vibrate violently during use to avoid damage to the telescope. 5. If you find that the monocular is malfunctioning, Please contact us.