You can wear a basic pair of headphone with no obvious redeeming qualities or you can wear Sennheiser"s HD 448. This headphone delivers an excellent, lifelike stereo sound experience, both indoor and outdoor. What"s more, it"s ergonomic design ensures a comfortable fit around your ears. Refurbished to new condition with Sennheiser warranty. Features Host Interface Mini-phone Manufacturer Website Address www.sennheiserusa.com Product Model HD 448 Product Type Headphone Product Series HD Product Name HD 448 Binaural Headphone Manufacturer Part Number HD448 Manufacturer Sennheiser Electronic Corporation Earpiece Type Binaural Earpiece Design Over-the-head Package Contents HD 448 Binaural Headphone 1.6 m Extension Cable 6.3 mm Adapter Plug Form Factor Ear-cup Weight 6.91 oz Wireless Technology Not Applicable Plating Gold Plated Connectivity Technology Wired Standard Warranty 2 Year Tech Specs Host Interface Mini-phone Manufacturer Website Address www.sennheiserusa.com Product Series HD Manufacturer Sennheiser Electronic Corporation Product Type Headphone Brand Name Sennheiser Product Model HD 448 Manufacturer Part Number HD448 Product Name HD 448 Binaural Headphone Driver Type Neodymium Driver Earpiece Design Over-the-head Earpiece Type Binaural Package Contents HD 448 Binaural Headphone 1.6 m Extension Cable 6.3 mm Adapter Plug Carrying Pouch Form Factor Ear-cup Weight 6.91 oz Connectivity Technology Wired Wireless Technology Not Applicable Plating Gold Plated Minimum Frequency Response 16 Hz Sound Mode Stereo Operating Distance 55" Impedance 32 Ohm Maximum Frequency Response 24 kHz |