Audeze LCD-2 Classic Closed System Newheadphone - closed-back, over-ear design, 97dB/1mw, neodymium magnets (N50), impedance 70 ohms, frequency rate 10 - 50000 Hz, leather free ear pads and headband, includes 1,9 m cable with 6,3 mm plug/dual 4-pin mini-XLR cable, synthetic leather ear pads