I did notice it cut out once or twice with my phone in my pocket while I was near appliances, but I also have a phone that in notorious for Bluetooth issues at the moment, so I cant really comment on Bluetooth quality. Once you take them out of the case they automatically prompt your phone for a connection. The caller on the other end of the line is the one that was hearing the popping, so I would say there is some small issue with the microphone. 5, and I bought 9. Also the toe of the shoe is cracked. But once you learn how to load the Q-Tips, the Acrylic Cosmetic Q-tip Cotton Swabs Buds Holder Organizer has been a great addition to my bathroom. It held up pretty well and my only complaint so far is stretching the rubber connectors over the edges of my iPhone 7+ in an Otterbox case. You still hear everything around you, but its muted enough to enjoy the music. She received it among other gifts just a few days ago. I used the size chart and it worked.