Generic Dual Focus Zoom Monocular Binocular Telescope, Black

HD vision monocular: 40X magnification with BAK4 prism lens design, giving you a clearer and more colourful scenery. Easy to focus: it can be folded to match the distance of your eyes, suitable for both adults and kids. Wide field of view: FMC multi-layer enhanced green film increases light transmission for brighter and higher-contrast images.