We have an Airfly Pro, and it has been extremely hit or miss as well. We used it for walking tours when we were in Italy, and it would sporadically disconnect and randomly want to turn off after a certain period of time. Was finicky to pair to two devices as well. This 100% does not work with the Bowers and Wilkins PX8. I've tried TWO Airflys because I thought it was an Airfly issue.