ICOOLTECH 16x52 Dual Focus Monocular Zoom Telescope / Monocular Scope for Hunting Camping Surveillance Offers an 16x magnification and a 52mm objective diameter This product has dual focus capability (front and back adjustable zoom) Multicoated optics guarantee superior light transmission and brightness Single hand operation.Powerful, ultra-compact and ultra-lightweight. Good for sporting events, concerts, bird watching, camping, fishing, and travelling