Pros Good bass and noise cancellation.
Cons Not that great to work out with. They tend to slip off during heavy motion exercises.
Summary Great earbuds to use while in the library or anywhere you are at. Just don't go running a couple of miles in them because with the sweat they slip off. I have had this for at least 3 years. Being used through out high school and college. So that mean the quality of them is quite astonishing.