Sennheiser HD 598 Cs Over-Ear Closed Back Headphones 507181 Description: Headphones in mint condition. Contents: Headphones, 6.5mm Cable Only. Used Tested Working - In Excellent Condition. Features: Premium, audiophile-grade over-ear, closed back headphones.Connectivity Technology: Wired Padded leatherette headband and luxurious fabric ear pads perfect for long listening sessions. THD, total harmonic distortion - <0.2% (1kHz, 100dBSPL) Compatible with virtually every Audio device including phones, tablets, computers and stereo components