These Meopta Meostar 15x56 HD Binoculars are the ultimate low light binocular with 7mm exit pupils. Features include MB5501 ion assisted lens multi-coatings, MeoBright, MeoShield, 100% guaranteed waterproof/fogproof, Schmidt-Pechan prism system, focus and diopter control, protective rubber armor with sculpted thumb pockets, aircraft grade aluminum chassis, and the Meopta North American Lifetime transferable warranty.