I hesitated before throwing my heart on this product ... I did well. I did by spending an excessive amount in this gadget without being sure of the result, comments from previous buyers helped me to decide. If you find a bluetooth controller that is cheap and is effective, go there with closed eyes. I have not had a problem the apairrage in "knob". Simply activate the bluetooth and hold X and home. The joystick works like a charm with games like sonic gta or king of fighters. The only downside in my opinion is comfort with the triggers which is not optimal. If you do not use them, no problem. It is an alternative, I think the handle samsung too expensive for my taste.