On recieving my earphones they looked high quality. Fitting was good helped by different size ear buds supplied. They were very easy to pair with my mp3 player. Sound quality up there with the best wired earphones, nice loud sound for those who like to mince there ears. Little awkward finding the buttons when on my ears and give time to read instructions before use! I'm a little impatient and reading them was a chore. Ran an half marathon wearing these and didn't need to adjust, fiddle or shove in my ears once. Battery life seems ok too.
Bottom line is, these are awesome and I'll never go back to wired again.