Sennheiser HD 599 SE Around Ear Open Back Headphone SE stands for special edition. The Sennheiser HD 599 Special Edition pushes performance barriers. It’s a premium headphone for those seeking timeless design and build quality along with exceptional sound. Powered by Sennheiser proprietary transducer technology and featuring the 'Ergonomic Acoustic Refinement' (E.A.R) design, the HD 599 Special Edition represents a step into the world of audiophile sound reproduction. This open back, around ear headphone delivers a natural tonal balance featuring exceptional detail and definition with outstanding spatial performance. Superior wearing comfort is provided by large ear cups fitted with plush velour ear cushions and a padded headband. Finished in classic black with matte metallic sliver accents this headphone communicates quality at first glance. Crafted to impress, the HD 599 Special Edition is a solid choice for music listeners with sense of discovery!