The last thing I would say is I would advise on buying the case that fits these little speakers. Was expecting better quality. I can grab the mail and walk through the front door and place the mail that isnt mine in the basket and hang my keys on the hook. Sound is very "warm" and exceptionally good over the entire frequency range. Actually I didnt even notice that I was wearing them while running, walking, and listening for hours! I toss them in soap and water, let them dry and theyre ready to wear again! - Bluetooth performance is poor, and Im talking about range, not sound. They don?t dig in my feet or between my toe, they fit my 9. This could be by DC design as I?ve flown with several people in the past where you heard absolutely everything that person did from swallowing to heavy breathing and I found that to be pretty annoying. I recieved the shoes and absolutely love them only thing is that their is a small dark spot on it.