With a superior field of view for glassing dense brush and enough power for long-range detection, 10x42mm BXA(R)-1 McKenzieTM HD Binoculars won't let you down. The Advanced Optical System delivers best-in-class low-light performance and a crisp HD image that will stand out from the competition. The roof prism delivers better resolution, and the compact design feels solid in your hands. The lightweight, compact design is waterproof and purpose-built to handle the harshest conditions. And like all LeupoldA(R) Binoculars, they're guaranteed for life.Specifications and Features:Magnification: 10xObjective Lens: 42mmField of View @ 1,000 yds.: 304'Eye relief: 12mmExit pupil: 4.2mmClose Focus: 9.8'Dimensions: 5.6"l.Weight: 22 oz.Mfg. Number: 181173