I bought two sets of headphones and would like to share my experience with the prospective buyers.
When I got my first unit, I was very happy. Speakers are nice with decent sound, Headphone cushions are great. Best thing is its lightweight, so you can wear for a long time. In only a few days I noticed my headband got loose. Then I find a fine crack in the plastic. I also have another problem of cable that easily tangles.
Update: I thought it may be my fault. So I ordered the second one. I am not a gamer. I use it with much more care. But the second one also had the same crack on the headband. I am disappointed! Why does Logitech tech not use better plastic? Why the headband is using either bad plastic or too thin structure.
I am still using the headphone but I am not a happy customer.
Update: Sep 25, 2018, It completely broke. I tried to contact Logitech. They did not respond well.
Update: Sep 27, 2018, It stopped working. Customer support team does not exist. Never going to buy any Logitech headphone.