The HD 201 is a pair of closed, dynamic stereo headphones for the budget-conscious music lover, featuring powerful sound reproduction, good attenuation of ambient noise and outstanding wearing comfort. Features: Powerful sound reproduction Rich, crisp bass response Lightweight and comfortable to wear Good attenuation of ambient noise Extremely rugged High-quality leatherette ear pads Gold-plated ¼" (6.3 mm) jack adaptor 2-year guarantee Technical data: Jack plug: 3, 5/6, 3 mm stereo Nominal impedance: 24 Ω Weight w/o cable: ca. 165 g Transducer principle: dynamic, closed Ear coupling: circum-aural Cable length: 3m Frequency response (headphones): 21.....18000 Hz Sound pressure level (SPL): 108 dB(SPL) THD, total harmonic distortion: 108 dB(SPL) Package contents: HD 201 Headphones ¼" (6.3 mm) stereo jack adaptor