Sennheiser HD 600 - Audiophile Hi-Res Open Back Dynamic Headphone

The open-back design lets every single sound wave expand freely, immersive listening experience with a wide soundstage and tighter bass, the mids come through clean, and the highs are crisp and detailed. Also come with soft, around-the-ear padding. Lightly used and always stored with care. Frequency response (speaker): 12 Hz - 40,500 Hz Sound pressure level (SPL): 97 dB (1 V) Impedance: 300 Ohm