High Definition 10-300x40 Monocular Telescope With Phone Holder For Bird Watching Hunting Camping Travel Powerful Zoom Monocular

High-concerned chemical : None Field of View : 4.6-2.6 Eyepiece diameter : 15mm Prism Description : BAK4 Water Resistance Level : IPX4 Objective Lens Diameter : 30mm Lens Coating Description : FMC Magnification : 8-12 Focus Type : CENTRAL Material : Plastic Type : Monocular Origin : Mainland China