Aurosports Compact Pocket-Sized 30X50 High-Powered Monocular Telescope Binoculars MAGNIFICATION: See Things 12X Closer And Get Clearer And Brighter Range Of View With 42mm Lens, Get 16 Megapixels Optical Sensor Resolution. FOCUS: Manual Focus,Single hand operation (Perfect For Use In Any Circumstances) TRANSMITTANCE: All-Optical FMC Multi-Layer Broadband Green Film Coated With Bak-4 Prisms. High Light Transmittance Reaches Up To 99.5% FUNCTIONAL DESIGN: Compact Size (Easy To Carry)Comfortable Hand Feeling,Comfortable Twist-Up EyecupsWaterproofTwo Way To Focus; Single hand operation PERFECT:The fully coated optics, meanwhile, guarantee superior light transmission and brightness, helping you see just about any target, whether you're searching for birds or trying to get a better view of the stag, it's perfect for indoor and outdoor use.