In your opinion, what is the best headphones for the iPhone? I am currently using the ones that came with the iPhone but have noticed that they don't exactly sound extremely clear when listening to any songs with even a little bass in them. I noticed that the apple store had some V-MODA Vibe Duo earphones. But, I also noticed that they do not have the convenient button for answering calls, pausing music and skipping to the next song. Are these headphones worth the $100 price tag even though it lacks this button?