Product material: plastic Size: Appearance size: 165x53mm Eyepiece diameter: 23mm Lens diameter: 42mm Field of view: 258FT/1000YDSP Prism material: BAK4 Actual magnification: 10x-12x Color: green, black Quantity: 1 piece Packaging content: 1 *12X50 overhead binoculars1. 12x50 high-definition high-performance monocular telescope with 10x-12x magnification and objective lens diameter monocular provides clear and bright images. The BAK4 prism FMC multi-layer coated lens strengthens the key functions of the monocular and ensures good light transmittance and brightness. Make your vision clearer and enjoy the beauty of the distance. 2. Optical technology for high contrast and high-resolution images, the high-definition monocular telescope uses BAK-4 prisms and fully multi-coated lenses, with excellent light transmittance and brightness as well as light transmittance, providing more viewing light and reducing chromatic aberration and heavy Shadow, giving you clearer, brighter and more colorful vision. 3. One-hand focusing, waterproof and fog-proof You can focus on the target quickly and accurately with one hand. Striped, durable rubber armor makes them comfortable to use, non-slip and provides permanent exterior protection from your hands. Nitrogen-filled waterproof material features a fog-free coating and O-ring sealed optics to protect against moisture, dust, and dirt and ensures your lens remains clear at all times. 4 Widely compatible with smartphones, the easy-to-install monocular telescope includes a smartphone holder and a tripod, making it more convenient and versatile to use. This telescope can be used alone or handheld, and your phone can be attached to smartphone holders and tripods. It is compatible with all smartphones on the market. 5. Ideal Gift and Satisfaction Guaranteed This monocular telescope is an ideal gift for women, men, children and outdoor enthusiasts.