The controller buttons for Square, Triangle, Circle, and X are not replaceable or moveable. I BOUGHT THE WHITE AND THEY ARE REALLY NICE. It doesn?t support the iPhone and the cradle for the ipod AirPods is much too small to fit. The heel is not too high or too low, and they are very comfortable. I have also used these in a podcast setting and again the results were amazing, even using just the headset to monitor audio levels is great due to the noise cancellation aspect. What it does NOT seem to do reliably is fast charge. The wireless range those things have . The battery life is great at about 6 hours listening to podcasts or music and making calls. They either come in at 5-6 or a 7-8. The ankle belt attached to the body of shoes slipped out.