Sony MDR-V700DJ DJ-Style Monitor Series Headphones (Old Version) Reversible swivel earcups for DJ and remix single-sided monitoring, with auto-return swivel mechanism Supra-aural design ensures excellent comfort and creates a controlled environment for better sound Huge 50 mm drivers deliver an outstanding dynamic range, with deep bass down to 5 Hz 3,000 mW power handling for the most stringent professional applications and daily use at very high output levels Detachable 10-foot, single-sided cord made of oxygen-free copper for high conductivity