Get the full audio experience without disturbing the neighbors. High-end open circumaural headphones with EAR technology for outstanding sonic accuracy and clarity. Sennheiser's innovative Eargonomic Acoustic Refinement (EAR design channels audio signals directly into your ears. State-of-the-art, advanced Duofol diaphragms for transparency and minimal distortion. Highly optimized, field-strengthened neodymium ferrous magnet systems for an excellent dynamic response. Surround reflector for extended spatial sound field. Lightweight aluminum voice coils for high efficiency and excellent dynamics. Special diaphragm geometry reduces intermodulation distortion. Highly constant, compressed cellulose fleece reduces total harmonic distortion. Premium beige and high-gloss burl wood parts for a sophisticated finish. Extremely comfortable velour ear pads and headband.