My new Skullcanfy on-the-ear headset says it's iPhone compatible. I have a 4S. I bought it for phone calls, but two weird things happen: one is, I ca't hear myself thru the headset; I sound like I'm underwater. Second, if a caller is on Facetime, my music library plays in the background but only I hear it. Do I return the headset and buy something else or is the problem with the phone?
