Monocular Telescope HD High Power 10 30x50 Zoom Monoculars for Adults with Smartphone Adapter & Tripod, BAK4/FMC Lens/Low Night Vision Bird Watching Wildlife Concert Stargazing Travel

【High Power Magnification Monocular with Zoom Function 】 BOSSDUN monocular telescope, with 10-30×50 high-definition adjustable magnification. Can meet your needs for different observation targets. 50 mm large objective lens, to ensure greater light transmission rate, obtain clearer and brighter images. 22mm eyepiece, wide-angle design, comfortable to watch without dizziness. 【Excellent Optical System】Our monocular telescope high power is use BAK4 optical prism inside, a glass with a refractive index higher than BK7. It can improves light transmittance and clear imaging. The lens uses all-optical FMC multi-layer green coating, and the image is sharp. Help you get the best view of outdoor sports adventures. It is very suitable for travel, hunting, bird watching, hiking, camping, sightseeing, concert, ball game, stargazing astronomy,etc. 【Waterproof and Anti-Fog】 The monocular telescope for uses an O-ring to seal the lens to ensure the sealing performance and can float in water. It can withstand the harshest environments and prevent the entry of moisture, dust and debris. 【Exquisite Design and Large Viewing】 This monoculars adopt a small and compact design which is very user-friendly and comfortable to hold. The field of view can reach 100m/1000m at 10×. Metal tripod and phone adapter included. It is easy to install and use, and you can share high-definition images to your family and friends at anytime and anywheres. 【Non-Slip Material & Easy Focusing】This monocular with zoom adopts rubber surface treatment, shock resistance, firm holding, comfortable and durable. It is ergonomic, you can hold the telescope and focus with one hand. Very easy to operate and portable.