I don't recall exactly, but this is the third or fourth time that I've purchased these headphones. The first one went apart after about a year and a half, with one of the ears coming loose and breaking in two pieces. The second was misplaced in some manner. In summary, I am fairly happy with the headphones, and I think the sound they produce is satisfactory for the price. An outstanding option for the price (450), to be sure. There is no sign of the wire becoming frayed anywhere. Quality? Yep, normal. Sennheisers at the price of 1500 (there were older models) also malfunctioned. The acoustic quality that they possess does not allow them to claim that theirs is significantly superior. In general, I would suggest it.
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