Vivitar Classic Series 10x50 Binoculars: * Suitable for bird watching, sports, concerts and general outdoor use * 1-year limited warranty * Center wheel focus design simplifies focus adjustment * Porro prisms * Objective lenses with 50mm diameter help gathering a large amount of light * Diopter adjustment feature offers visual correction for an optimal view * Multicoated lenses of the 10x50 Porro Prism Binoculars cut down glare and ensure sharp image reproduction * Rubber armored exterior to endure the rigors of outdoor use * 10x magnification power * 293 ft (89.30 m) linear field-of-view at 1000 yard (914.4m) * 10m minimum focus distance * 5mm exit pupil diameter ensures that the Vivitar Binoculars can be used in low-light conditions * Weight: 1.85 lbs * Dimensions: 9.1"L x 7"W x 2.6"H * Model# VIV-CS-1050H