It is very comfortable and the sound quality is good. The case is slim and can be easily fitted in a front pocket of any of the pants that I own. There is however a persistent high pitch static noise. It is not faint. In fact it is quite audible and only disappears when the earbuds go into power-saving mode. I have tried my unit with other devices with the same ever-present high pitched static noise. I am not sure if my unit is faulty. I would like to know what other people are experiencing with their unit.