with my smartphone (Archos 50 Platinum) also do not work the headset. Also, I must like other buyers hold the button constantly pressed to even know what to fortuitous. Then it sounds good, but that may not indeed be the point of it. I must also adjust the volume at the highest level. Although it is described that a good sound experience even at low volumes. Also with the app it has not improved. Unfortunately for me unsuitable. You must unfortunately return.