I picked up my 4s and so far no major problems. The main issue that I am having is when I am listening to mp3's/Sirius xm over the jawbone era (a2dp) and I receive a call the phone defaults to the handset even though the Bluetooth is paired . I am not sure if anyone else has this same problem. I haven't had a chance to test this with other headsets. I am not sure if anyone can help me with this issue.