Like the Stealths, the EP-630s are in-ear headphones - they don't just sit in your ears, they push right into your ear. There are two major advantages to this type of design, first up is that they don't tend to fall out of your ears when you're jogging like standard ear-bud type headphones do. But more important is that with the headphones pushed deep into your ears, you cut out almost all the background noise.



Link: Trusted Reviews