Sound is good. Mostly comfortable. But it constantly loses connection with my phone. I have to forget the device and reconnect. If I disconnect, I have to re-find the device about 3 out of every 5 times. And the phone doesn't appear to be the problem. While I'm talking on the phone, the mic will cut out regularly. That's the cost of buying low price. However, it let me know I do like the concept and will probably purchase a better quality version eventually. I wanted to love these, but I am super disappointed overall.