Here's a relatively recent article with a summary of in-ear headphones.... http://gizmodo.com/5033455/ultimate-cut+the+crap-in+ear-headphone-battlemodo http://

Here's a relatively recent article with a summary of in-ear headphones.... http://gizmodo.com/5033455/ultimate-cut+the+crap-in+ear-headphone-battlemodo http://gizmodo.com/5033455/ultimate-cut+the+crap-in+ear-head... /edit to fix the link