Ohuhu 12x50 Waterproof Binocular for Birds Watching/ Hunting/ Camping/ Hiking Armoring/ Sightseeing/ Surveillance/ Races (monocular) Offers an 8x magnification and a 40mm objective diameter This product has dual focus capability (front and back adjustable zoom) Multicoated optics guarantee superior light transmission and brightness Single hand operation Good for sporting events, concerts, bird watching, camping, fishing, and travelling Offers an 8x magnification and a 40mm objective diameter; This monucular scope has dual focus capability (front and back adjustable zoom); One of the features is multicoated optics superior light transmission and brightness; When using Ohuhu monucular telescope, you only need single hand operation; This monucular scope is good for sporting events, concerts, bird watching, camping, fishing, and travelling.