bluetooth headset it even works pretty well but is not very practical: there is no way of locker keys and are particularly sensitive; which causes changes in track or untimely stops ... Touch volume control is also really hard to use (impossible without watching the display to check what you do) and also tends to activate in the event of friction in the pocket.
other hand I bought this headset for use with a phone sony ericsson Xperia Neo and compatibility is poor: no title display, and since the last update I can more listening from the start the atrium, only from the phone.