Headphone looks and feels sturdy, it is quite a big size for mobile use but it is still small compared to other headphones designed exclusively for home use. I use them everywhere I go and so far have had never annoyed neighbours on trains. However they are not noise-cancelling in-ear earphones, some of the ambient noise will still be heard, just not much. In complete silence some of the music you are listening to will also be heard, just not enough to annoy people next to you. Sound quality is just amazing. These are very detailed heaphones: neutral is what they are. This can actually be so extreme that you may have the impression of studying the music rather than feeling it, which may not be what some people are looking for. I needed closed headphones for use with my phone most of the time, and I am totally happy. Of course in the end open headphones are the best, but this is the best of what closed headphones can bring you.

It can feel a bit heavy on the head sometimes.