Everything else I can think of is mostly subjective, and based on my testing, mostly in your head. After a few years they discontinued that model, and I slowly drifted into less-expensive brands, some good, some awful. They have sent me some new cables for my microphone and very happy with the outcome. Pros -- fit well in a small ear- sound quality is good even when working from home and have a toddler creating havoc- obviously great noise cancellation because it cuts off the kiddie noise- good connectivity. At first I wanted to return the slippers after my initial try out. $900 for worthless junk. I ride pretty rough trails and its very secure - no worry about the GPS flying off. There is no padding in the in-soul like you see with other Crocs walking shoes. Any way I absolutely love these comfy Canadian Crocs and get many compliments. After all, many of us have a multi-port USB hub on our desk, which were already using for other devices, and it seems easier to just plug into that.