HD Magnification: 300X magnification and 40mm objective lens diameter monocular telescope, provides a clearly, bright image and different fields of view, Perfect for Bird watching, Hunting, Hiking, Concerts, Climbing, Ball games, Traveling, Camping, Wildlife, Scenery, etcBAK-4 Prism and FMC Lens: Telescope inside with BAK-4 prism and Fully Multi-Coating lens coating could strengthen the key function of a monocularLow-light-level night vision built-in design help you see things in low light, perfect gifts for menWaterproof & Fog proof: The monocular scope comes with hand strap, rubber armor with stripes increases the friction, keeps it from slipping out from your hand. The IPX7 Nitrogen-filled design makes the monocular telescope waterproof, fog proof, shockproofMonocular Telescope Widely Compatible with Smartphone: Our monocular telescope Comes with a newest-version quick alignment smartphone holder, tripods, Easy to install, provide HD images to share with your friends and familyComfortable and Intimate Visual Experience: This compact & lightweight monocular telescope is convenient to use. Adjustable eye cups can be easily and rapidly twisted up and down for optimal viewing with or without glasses