New to the HD 500 series product line is the HD 559, a headphone for those seeking exceptional value. Powered by Sennheiser proprietary transducer technology and featuring the “Ergonomic Acoustic Refinement” (E.A.R) design, the HD 559 provides the first step into the world of audiophile sound reproduction. This open back, around ear headphone delivers a natural tonal balance with outstanding spatial performance. Exceptional wearing comfort is provided by large ear cups fitted with plush velour ear cushions. The HD 559 is the ideal choice for listeners wanting performance beyond price.