Bad! I am not satisfied with the quality of the product.
Headphones have been used for 2 years.
I want to note that they never fell during the period of operation, they were used carefully.
Pros
Subjectively - an interesting sound with its own character. LFs are average in sound, but MFs are pleasant, soft and even. There is nothing special to say about the HF, it feels normal.
Soundproofing at a decent level. Landing headphones on the head does not cause discomfort, there is no pressure on the ears; neither the head nor the ears get tired.
Cons
The first Senheiser model, which was very disappointing.
The quality of the materials is terrible, I could not expect this from the manufacturer. The side plastic began to crack in the second month. When the headphones are put on, there is a bathhouse inside the ear cushions, the ears and part of the head covered with ear cushions sweat. The ear pads themselves broke two months ago, i.Π΅. after just under two years of active use. The microphone in the raised state (up) does not hold its position very well; during use, it continually strives to slide down to the switch (pictured), because of which it will be in the side field of view.
Headphones crackle and creak when put on / taken off.
IMHO, for a headset, the wire is not very long. I have quite enough of it. At half a meter, I would like the wire to be longer. Oh yes, the wire itself is such that it constantly wriggles, twists, clings; constantly picks up dust.