Wide 66° Apparent Angle of View 56-75mm interpupillary distance range allows easy viewing by a wide variety of users THIS BUNDLE FROM TEDS ELECTRONICS INCLUDES: Vortex 10x50 Viper HD Binoculars V202, Vivitar Professional Cleaning Kit O-ring sealed and argon filled to be waterproof and resistant to internal fogging when moving through extreme changes in temperature or environmental conditions High-density (HD), extra-low dispersion (ED) glass lens elements reduce chromatic and spherical aberrations for increased contrast and improved color rendition and sharpness without distortion across the entire field of view