Hello everyone, I will be sharing my experience of using these JBL C300SI headphones. And honestly my experience was horrible. I borrowed them from a friend of mine as I was impressed with the brand name and badly wanted to listen music through them. But my experience was really a painful one. The worst thing about these headphones are that that are so tight and hard in its fitting that it becomes really painful to listen music through them. Then the price is also unnecessarily high and the compromise on its quality is too big. Though they deliver deep bass but it’s useless as one cannot listen with them since they being so painful. Then the material of which they are made is steel.which makes them more hard on our head and ear. So I strongly will not recommend these to anyone. Have a great buy.all the best!