Sennheiser HD 598SR Over Ear Headphone with Smart Remote - Black 507365 Contents: Headsets, Cable, Adapter, Box. Used Tested Working - In Good Condition. Description: The Sennheiser HD 598SR lets you enjoy your favorite tracks in exceptional sound quality and unrivalled comfort. Its open-backed, full-sized around-ear design with comfortably soft ear pads ensures pleasant hearing sessions for hours on end. With enough room to breathe, not only for your music but also for your ears. Premium, audiophile-grade over-ear, open back headphones Pad