I've owned two of these now, and while I absolutely love them, they have a serious flaw. The plastic part that locks the earcups in place have now, on both units, suffered the same stress fracture which causes it to break apart completely. This is an incredible and serious design flaw, and it's unbelievable that they haven't discovered this during the design and engineering phase - something puts too much pressure on the plastic joint, causing it to break even with completely normal use. Sucks, because I really like these phones!