While the Lubix didn't do very well with music, it did a much better job with calls. The main reason for this is because you don't need super high quality sound reproduction when you are talking over a cellphone since the compression applied by the carrier already knocks the quality down. I found these suitable for listening to calls, and the people on the other side of the phone had no complaints either. While it is a little different to have something in both ears for a phone call, it wasn't too bothersome.