One year experience. I am writing a review here, since the well-known orange store blocks it (apparently they bought a lot and wind up the rating). To be honest, before buying these headphones, the Lenovo brand was trustworthy. Now it is gone, and this is the first and last purchase of this brand. When I bought this product, I was happy with the sound that they gave out for their 6k. But a couple of months passed and it started! First began to disintegrate kozh. Zam. head tongue. Gritting my teeth, I didn’t carry it to the service, I disassembled it and glued it, I thought I got a defective copy. However, after a couple of weeks, the ear pads began to disintegrate, no matter how I pecked them, they still fell apart. It is very difficult to replace them (you need a specific tool). And anyway, why should I do this, the headphones are 3 months old ? ! A month later, moving elements began to creak, which now and then infuriate. I liked the noise isolation, but it’s good not because the noise is correctly made, but because the ears in the ear pads are simply isolated and do not breathe at all. Because of what, after an hour of listening, the head begins to sweat like in a bath. I am attaching a photo of the headphones after six months of use (this is considering that I still glued them) I strongly do not recommend the product, as well as Lenovo in general. Read the correct reviews of people with operating experience, and not those who just took the product and evaluates them with their first amateurish glance. My Chinese no-name headphones didn’t fall apart like these.