Pioneer HDJ-500-K Professional DJ Headphones (Black/Silver)
Pioneer HDJ-1500 or HDJ-500 headphone cable | eBay
Replacement DJ Headphone Cable Cord Line For Pioneer HDJ 500 1000 1500 | eBay
Amazon.com: Pioneer DJ HDJ-X7-K - Closed-back Circumaural DJ Headphones with 50mm Drivers, with 5Hz-30kHz Frequency Range, Detachable Cable, and Carry Pouch - Black : Musical Instruments