For 100 you will find everything: very good isolation with the outside, you can use it in the street. Musicality: Beautiful serious and lively mid, high positioned, precise and very pleasant; the sound is very open and the stereo width and returned with great precision: it is a Rolls. I operates with happiness on my Samsung Galaxy smartphone that seems made for him: it is a very successful marriage. The satisfaction of praise will be present after a break-in 48 to 72 hours.