Sennheiser HDR170 Extra Headphone for Wireless System HDR RS170
Sennheiser HDR170 Wireless Headphone - new in sealed retail box RRP $299.99 Extra Headphone for Wireless RS 170 Headphone system with superior bass and surround modes for pure entertainment. - Closed, circum-aural coupling headphones - Digital wireless transmission - Dynamic transducer systems with powerful neodymium magnets for clear and detailed audio reproduction - Dynamic Bass and Surround Sound listening modes - Advanced Duofol diaphragm technology almost eliminates standing waves inside