Sony MDR-V500DJ Monitor Series Headphones with Swivel Earcups (Discontinued by Manufacturer) Swivel Earcups For Dj and Remix Applications Exceptionally Clear Sound For Professional and Hi-Fi Applications Supra-Aural Design For Excellent Listening Comfort Allows Users To Listen To House Sound With 1 Ear While Queuing Up The Next Track With The Other Supra-aural design for excellent listening comfort Folding design for compact mobility; extremely lightweight (7.9 oz.) 40 mm diameter drive units for delivery of broad frequency range Tangle-free, single-sided, oxygen-free copper cord is 10 feet long (3 meters) Swivel earcups are also reversible; comfortable single-sided monitoring