Pros: WOW!! The sound is good, and you did something amazing with the noise cancellation, there is not a bit of background noise. I love the metallic case! It has a wonderful sound all wrapped up in a metallic case that prevents damage and is a LOT smaller than it sounds. The sound is awesome and the earpiece change you made makes them more comfortable!! I thought they are the absolute BEST sound in the cordless earphones available!!

Cons: There was really nothing that I didn't like about them. They were Awesome right out of the package. Charge and go.

Overall Review: If you have a choice of earphones, you cannot go wrong with these!! They are compact and in a metal case so that they are protected. They are not heavy and easily slip into a small compartment of your EDC. The sound of these is PHENOMENAL!!