And so, what has changed a year after operation: 1. The cord, as it was wooden, remained a year later, that is, even in a year it did not become smoother, it looks like it was pulled out of the package a couple of minutes ago =). 2. As expected, the microphone mount was loosened, during the check to correct the backlash, it turned out that it was actually held there on a plastic latch, which was loosened (while the microphone practically did not touch). The problem was solved simply - pasted =). 3. The mechanism for adjusting the length / height of the headphones broke, since my head is large and opened the headphones to their full length. But the residue is still there. 4. As it turned out, the most popular problem (if I had seen it before, I would have taken another headset) is the problem that headsets of this series and models with such ear pads have, they broke a year later, and this is with excellent care for them ! Just peeled off two parts that were connected to each other thanks to the glue! Instead of sewing, they just decided to stick it, it's easier and cheaper. How much I haven’t looked, I haven’t seen someone on headsets for 4-6k, the materials from which the ear pads are made were connected with glue! Everyone sews with a thread, yes, in cheap ones, they can save money and just stick it. This is a fat minus in the Sennheiser piggy bank, and I see such a thing on expensive models, that is, I bought it, used it for a year and ran to buy new ear pads, which are actually not cheap on the OF site, from 1500r 😄. I ordered from China for 500 with the delivery of temporary ear pads for this headset, and according to the measurements of native ear pads at home on a typewriter, it will be possible to “Sew” (not glue) new normal materials from normal materials, but for now I temporarily sewed them up where they peeled off. I will not change the headset because of such defects, because even taking into account all these defects, the sound is good and sits well on the head. And then I’ll look for a normal headset, but I’ll already know where to look so as not to step on the same rake). I do not advise buying these, there are analogues and better. In fact, the price of the headset is doubled, given its quality.