The only reason they got 4 instead of 5 stars is that the flip flop noise is annoying. These looked like a quality set of earbuds, so I bought them. Pro:Make it a lot easier to hold a power cord in a bag. I used this new headset. The cords dont feel as sturdy as Id imagined, and though flat, and probably less tangles, all cords tangle, period. I had read that they ran large so i ordered a 9 and a 10. When you have a seller that backs their products thats worth a 5 star. And its a nice length, not too short. They fit super well in my ear, I dont have trouble with them getting slick from sweat and falling out like I did with my last pair. Por cierto, gracias Amazon por hacer que la gestión en la devolución de los mismos haya sido tan sencilla y ágil.