I have a Pilot Impulse bluetooth speaker. The speaker works 100% perfectly with my old Moto phone. It doesn't with my Z3 Compact. Here is what happens. When you turn on the speaker, a green bluetooth indicator lights up and the speakers says "pairing". I turn on bluetooth on my phone and after a few seconds the phone shows it's connected and the speaker led blinks and it says "pairing complete". If I don't touch the phone at this point, the green indicator on the speaker stays lit. BUT, as soon as I touch ANYTHING on the phone, the bluetooth indicator on the speaker goes out and if I start playing music, there is no sound. It clearly disconnects the instant I touch anything on the phone. Yes, I've restarted the speaker and the phone a gazillion times and it makes no difference.