Can anyone help me out here? I've always wanted an A2DP set of headphones ever since it was made possible (3G S, I think) but never got around to it. With the implementation of Siri I think I'm going to buy some. Any recommendations? What I'd like in a pair is this (please let me know if any of this is impossible): 1. Obviously A2DP stereo sound for playing music. 2. A call/hang up button on the headset 3. Decent sound quality 4. Good build quality Thanks!