Sennheiser HD-555 open air dynamic High-end headphones bring professional sound and features for your listening enjoyment--all at an affordable rate! These headphone prove once again that Sennheiser is able to set new standards by offering perfect sound, unsurpassed comfort and the ultimate in quality. These headphones are an excellent compliment to anyone looking to enhance their Satellite Radio experience. Features include Sennheisers innovative Eargonomic Acoustic Refinement (E.A.R) technology, enabling ideal sound channeling for a new kind of listening experience. It comes with elliptical circumaual earcups, which are multidirectionally adjustable for a perfect fit. Sound optimzation through angled acoustic baffle, parallel to the human ear, providing a listening experience that will blow you away. The advanced duofol diaphragm technology, outstanding wearing comfort, and exchangeable components simply cannot be rivaled with other satellite headphone options-- and it is not even close. The best programming around (XM) coupled with the best headphones around (Sennheiser) will undoubtedly satisfy any customer. Look no further, this is the clarity of sound you have been searching for. Package Details: Includes: • Sennheiser HD555 Headphones Product Features: • Eargonomic Acoustic Refinement • Advanced Duofol diaphragm technology almost eliminates standing waves inside the capsule • Highly Optimized, Field-strengthened neodymium ferrous magnet systems. • Outstanding wearing comfor for long listening sessions • Skin caressing velour ear pads even allow the wearing of spectacle frames without loss of comfort • Longevity through exchangeable components (ear pads, cable, headband) • Lightweight aluminum voice coils for high efficiency and excellent dynamics • Surround reflector improves spatial sound characteristics Technical Specifications: Model #: HD555 Manufacturer: Sennheiser Shipping Weight: 3 lbs. Available Documentation: In order to view our radio hardware manuals online, you will need to have Adobes Acrobat Reader installed on your computer. If you dont yet have Acrobat Reader, please visit Adobe's web site to download the reader free of charge. Sennheiser HD555 Headphones (n/a)