- The sound meets expectations, you can slightly reduce the bottoms through EQ, the noise reduction is so powerful that you can forget that you are going to the subway, and that it is usually noisy there (and this is at 50% of the music volume) the effectiveness of noise reduction, and even the fullness of sound depend on good putting on; at the same time, I will say that I use it both with a phone and a computer, and the switching process takes literally 3 - The "speak to chat" function, if you often need to switch from listening to talking to someone, is the fastest way for this purpose, like play / want to once again put them in a case, the two ears are easily magnetized to each other, so it’ and how many days depends on the use.