None of its keys or volume wheel would work until you reboot your computer. I love these slippers and they fit and feel great. I normally wear a size 5 shoe which are extremely difficult to find. Fits upper arms and forearm. This is just pathetic attempt at stealing more of your money by giving you nothing new except what youve already had access to for a year. It?s handsome and fits in with our decor nicely. You will be rewarded with stability and performance. SOUNDS PERFECTLY AND PEOPLE CAN HEAR ME! They were also more dry than other birkenstocks. As for lack of arch support, there is evidence now that arch support weakens the arches, whereas no arch support allows the arch to become exercised naturally and strengthened, with room to spring up and down rather than being crunched down against the unnatural arch support which curtails the archs natural play within all the dynamics of the bones, connective tissues, and muscles.