Summary: My work bought these as a VOIP headphone/microphone. Unfortunately the bluetooth call connection only uses 8khz mono on Mac or PC, so the audio in/out quality was terrible. Also, the people on the other end of the call could hear every conversation from my office.
Pros: Music sounds good
Cons: Call quality is awful (8Khz mono) when used from a Mac or PC. Background noise reduction seemed nonexistant. Not comfortable for long use.
Summary: Let me preface my comments with the following: I am pretty sure I was using this properly. I read the instruction manual. It's still pretty bad. In brief, other than the aesthetics, there was no aspect of these headphones that I liked. Considering the price, I'd say this is a pretty bad value.
Summary: The ear pieces will not sit flush on your ears if you don't have an extra large head, which in turn makes using it for phone calls very frustrating because of the already low volume. Also, the "Fold to Turn Off" was a dumb idea as they always feel like they're going to break when you close them.
Summary: Wow, I've seen some cheaply made products in my time, but this one takes the cake! (In my experience even the most cheaply made products don't break until you've finished easing them slowly out of the package!