Playback Frequency Band (Hz) 15 - 25000 Cable Length (m) 3 Driver Size (mm) 30 Maximum Input Power (mW) 200 Rated Impedance (Ω) 55 Sensitivity (dB SPL/V @ 1 kHz) Semi-open Thank you for viewing. I have confirmed that it works and produces sound properly. The box used for packaging has some minor scratches, but is mostly in good condition. The headphones themselves have no scratches and are in beautiful condition. Stored at home. Please refrain from purchasing if you are concerned. Also, I cannot offer a discount.