These earphones pump out quality sound, especially for being in-ear buds. Great bass and clarity.
Now...for the cons. The bud on the line with the mic control is 50% louder than the other bud. Sometimes I can't tell, but usually its like one bud isn't even in my ear. Maybe mine are defective or they fixed this in the new model. Next, don't use these for running. Lots of noise when you rub the cord, and even with interchangeable silicon pieces, they never stay in my ears when I run.
I have the 2010 version of these, so some of this review may not apply to this version.