Just got my headphones, and compared to the ones provided with the iPhone, they're extremely good. Clear sound, the plugs are very comfy, and for the first time since I got the phone I can hear all the subtleties of the music in my library. The sound is great and cancels out all the background noise from traffic etc. I'm not a techie, but I love music so for 11.99 I've got my tunes back and my iPhone us complete. The microphone is great too, no let-down there. Many thanks iFrogz and Play for a good product that does exactly what it says on the tin. Cheers!