B-Stock, Akai MPC Headphones, studio and Hi-Fi headphones, Superior build quality, tuning, and frequency response, 50mm neodymium drivers, Gunmetal aluminum and steel construction, Closed-back design prevents sound from leaking in or out, Audio cable with 3,5 mm jack connector, 6,3 mm jack adapter included, Communication cable with built-in microphone included, Frequency Response: 12 - 24000 Hz, Max SPL: 114dB @ 1kHz, Impedance: 16 Ohms, Cable length 2,1m, B-Stock with full warranty, may have slight traces of use