i upgraded to these mostly for the noise cancelling, a feature the previous samsung  buds didnt have.  my other headphones fit snug in my ear and would rarely fall out, these fall out often, even though i've changed the tip size.  the noise cancelling while it does reduce the outside noise i find that it doesnt completely muffle sound. even with my music up all the way and on the highest setting i can still hear my coworker across the cubicle, and my keyboard clacking.