But the microphone means a slightly different jack. There are holes on the rack in four places, and depending on your walls, you can use the hardware you need. Tightened the toe area and left the foot area a little loose and that seems work best, but my right instep keeps hitting the edge of the sandal, which I can?t seem to fix with different strap tightness. They were also slightly large. I got the polished chrome, and they gleam. very timely from order to product being received. The outside and inside difference isn?t comparable unless you?re wearing it. However, the top band that goes over the foot is extremely too loose as if they were made for persons with a thicker/chunkier foot. 5 or 12. Theyre comfortable and breathable, so my feet dont get hot.