Sennheiser HD 820 Over-Ear Closed-Back Headphones (Black) - Walmart.com
Sennheiser HD 820 Over-the-Ear Audiophile Headphones Ring Radiator Drivers with Glass Reflector Technology, with Balanced Cable Black HD 820 - Best Buy
SENNHEISER HD 820 Over-the-Ear Audiophile Reference Headphones - Ring Radiator Drivers with Glass Reflector Technology, Sound Isolating Closed Earcups, Includes Balanced Cable, 2-Year Warranty (Black)