B-Stock, beyerdynamic DT-1770 Pro 250 Ohm Studio headphone for mixing, mastering and monitoring, Tesla 2.0 Technology, dynamic, closed back, over-ear design, impedance 250 Ohm, sound pressure level 102 dB/SPL, frequency response 5 - 40000 Hz, 200 mW maximum input, 3 m straight cable, 5 m coiled cable (stretched), 3-pin mini XLR, includes 6,3 mm adapter, 1 extra pair of synthetic leather ear pads and hardcase, weight: 440g with cable, 376g without cable, B-Stock with full warranty, may have traces of use.