12× Magnification & 50mm Objective Lens: This Gosky monocular is equipped with 12×50 high power magnification, which is the presents bright and clear images within a range of 289ft/1000yards. Extending your adventures to greater possibilities. Premium FMC Lens & BAK-4 Prism: The HD monocular telescope uses 17mm BAK-4 optics prism and FMC (Fully Multi-Coating) lens, which could increase the monocular's light transmittance and unnecessary light reflection, delivering clear and sharp pictures. IPX7 Waterproof: IPX7 Nitrogen-filled waterproof design and O-ring sealed optics provide waterproof, fog-proof, shockproof, and dustproof protection in any weather or any condition for any mission. The Twist-up eyecup could be smoothly rolled in or out to a comfortable distance, which is very convenient for users who wear glasses. Comfortable and Perfect size Experience: Compact design for users to hold or focus with a single hand. A solid framework and shock-absorbing rubber armor with stripes keep it from slipping out of your hand. Universal Smartphone Adapter: With the included upgraded quick-alignment smartphone adapter, your mobile phone could be easily attached to the Titan telescope. It would help you to get a close HD IMAGEs without shaking during bird watching, hunting, hiking, camping, traveling, wildlife, scenery, etc.