Closed-type supra-aural, 30mm driver unit, neodymium magnet, 1.2m cable (both-sided).High quality and powerful sound.Enjoy clear mids and deep bass.Four colors to suit your style The MDR-ZX300 Stereo Headphones (Red) from Sony provide high-quality audio in a lightweight and comfortable package that's ideal for life on-the-go. The collapsible construction and swivel earcups make it easy to stow the headphones in a backpack or bag for travel, while metallic accents add a splash of style. The 30mm PET multi-layer dome diaphragms have neodymium magnets to deliver crisp, realistic audio with a wide frequency response. The closed-back earcups and pressure-relieving on-ear urethane cushions offer lasting comfort and also help to block out unwanted environmental noise. The padded headband is adjustable to fit virtually any head size for a secure and comfortable fit. The cable offers plenty of slack and has a gold-plated angled 3.5mm plug for strain relief and wide compatibility with MP3 players, CD players, laptops and more.