These headphones are so comfortable I forget I'm wearing them. The head is not pressed, the head does not hurt, the sound is not crappy, the voice transmission is timely and of high quality. The string went through a little hell, the dog grabbed it and nibbled it a little, you don't notice! So I have to say that the durability and comfort are the best. However, it would be great if the headphones had some sort of software to balance things with the sound module/card. They work great for a while, but the cord loves to twist and no matter how hard you straighten it, gently or not. , within a few months the crackling starts with every movement of the head or the cord. The worst thing is that you can't find the problem, remove it, connect the cables and get back to work. Nice try for the manufacturer, you did a good job of assembling it. But the cable is the biggest problem. You need something to increase the "straightness factor" of the cable. I would add thick silicone fins along the length of the cable but that's just me ;)