The headset works perfectly, the connection is immediate, the sound is good for you as well as for the listener. It fits comfortably on the ear and is comfortable and very light, it hardly feels. The autonomy has very good air, for now I have never charged and it still shows high after 2 hours of use. I have not been able to operate the voice recognition corresponding Android, but I do not think that the headset is concerned. By cons I thought I could use bike but wind noise is too annoying when it is rolled too quickly. I do not think this is a pb specific to this model.