Pax 3 doesn't stop vibrating

Occasionally when I'm using my pax it vibrates saying it connected to my phone and then continues to vibrate and flashing the blue lights saying it's connected to my phone it dose until I get fed up and turn my Bluetooth off on my phone. It doesn't do this all the time but it happens at least 50% of the time when I'm using it. Is this happening to anyone else with a pax3? What can I do to stop it from doing this but still he connected to my phone.