[. . . ] [. . . ] HD 424 outside noise Blocks Closed-back around-ear stereo headphones with dynamic bass and high passive noise attenuation Want a pair of headphones that sound as good as they look?Look no further for the HD 424 comes with a crosshair design and rugged rubber finishing on their earcups, but their high-output neodymium magnets provide for a powerful stereo sound reproduction. of products per multi-pack Packaging languages iPhone and iPod are trademarks of Apple Inc. , registered in the U. S. [. . . ] [. . . ]