Some reported headset not working when tested, I tested all 4 and all works. Not enough cotton, flimsy plastics stick, and the packaging needs a spell and grammar check. Sound quality was great. I have to walk dragging my feet. These are really comfortable shoes but I had trouble finding the right size; So my daughter wears a size 5 and so we got a size five but she couldnt even fit her foot in. It took quite a bit of hunting for the opening, and once found, it took a bit of gentle guiding to get the unit and speakers out. happens when buying online. The sound quality is Great and it seems to work well, I just cant control it without the remote. If you like the Olukai Ohanas, but kinda hate the thick strap, these are a great alternative. I’m a personal trainer and I spend all day on my feet, I wanted a minimalist barefoot shoe that I could wear at work that didn’t look like pool shoes.