Description Sony ZX Series Wired On-Ear Headphones Maximizing your personal audio experience has never been easier than with SONY ZX-Series Monitor headphones. Built with comfort and performance in mind, there’s no need to compromise. Enjoy rich, full frequency response 30 mm driver units deliver full, balanced sound for a complete listening experience from 12 – 22,000 Hz. Swivel, folding design Compact for portability yet affording listening flexibility, the swivel, folding earpads let you enjoy music in many ways. Tangle-free cables The durable, 1.2 m y-type cable resists snags and tangles so you can get caught up in your music, not your cord.