Went to a local store, asked for a headset with remote and they showed me an Aiaiai Tracks (these have mic+volume control), but, as many of you may know, the "iPhone" headsets aren't compatible with the XPlay, and so I was getting an "Accessory not supported" error.
I researched a bit, and finally got a CTIA<->OMTP adapter, returned to the store and surprisingly the headset still not worked, I was no longer getting the error but no sound came from the headset, in fact, seemed like my phone didn't detect them since the music played trough the loudspeakers. Then asked an employee if they had a similar ones and gave me a Marshall Major (just mic and the central button), plugged with the adapter and worked just fine, the mic, the button...
Nevertheless I prefer the sound of the Tracks over the Major and I think that the only difference on their connections is the volume control since they are both "iPhone compatible".
Can anyone explain me how can I get them to work?, I don't mind if the volume buttons don't work, just as far as I can use the mic and the central button.