These are the 4X binoculars that provide the widest field of view available to give a full panoramic view of sporting events or wilderness areas. Its compact mirror prism system provides a generous 900' field-of-view at 1,000 yards, allowing you to see the rush, the pass, and the completion at once or spot bird movement without revealing your own position. Its 30mm multi-coated objective lenses are coated for anti-reflective properties that improve light transmission, color rendition, and contrast. Its 10mm eye relief, 6mm exit pupil, and fold-down rubber eyecups are kind to those who wear glasses. IPX4 rating provides superior water resistance. 5" L x 4" W. (1 1/2 lbs.)