Sony MDR-ZX100 Stereo Headphones - Black Take your music to go with the MDR-ZX100 ZX Series stereo headphones, which boast 30mm drivers and extra comfortable earpads in a noise-canceling, supra-aural design. Perfect for in the studio, on the streets or at home, these on-ear MDR-ZX100 ZX Series stereo headphones feature quality components; extra comfortable, cushioned earpads and a noise-canceling, supra-aural design-all at an unbeatable value. High-energy neodymium magnets, 30mm drivers and multi-layer dome diaphragms combine to provide serious sound quality, while swivel earcups add collapsible convenience-making these headphones a perfectly portable companion to your iPod� or portable MP3 player.