Sennheiser Professional HD 280 PRO Over-Ear Monitoring Headphones

New, never used — I didn’t keep the box, because I thought I actually would use them  • Dynamic, closed-ear headphones with up to 32 dB attenuation of outside sound • Lightweight and comfortable, ergonomic design, Cord Length, 3.3, 9.8' Coiled.Contact pressure:6 N • Extended frequency response and warm, natural sound reproduction. Frequency response 8 - 25000 Hz • Around-the-ear design with padded ear cups; Load rating: 500 mW • Nominal impedance - 64 Ω.Sound pressure level (SPL)- 113 dB