It is newest style binoculars with water proof,which specs are as follow; Magnification 8X Objective Diameter 30mm Prism System Bak 4 Porro Prism Minimum Focus Distance 5M Angle of view 6.34° Exit Pupil Diameter 3.6mm Exit Pupil Distance 16.2mm Field of View/1000meter 111/1000M Weight 492g Dimensions 139x52x152mm