40X60 Monocular Telescope High Power Monocular for Adults with Phone Adapter& Tripod& Hand Strap Low Night Vision Monocular Equipped with BAK4 Prism for Bird Watching Hunting Traveling Concert

monocular monocular monocular Upgraded eyepiece/ BAK4 Prism Upgraded 20mm Multi-layer Eyepiece and Large Crytal BAK4 Prism provides you with superior Brightness and Clarity, gurantee the key element of an optical device.