Arc系列鼠标在2008年微软退出了第一款，当然楼主这款不是最新款的，到手这款是Arc，最新款产品是Surface Arc，两者其实外观是没有明显区别的 ...

So it seems that Microsoft has a patent in process for a folding mouse. It looks a whole lot like their Arc mouse, which is quite thin and already goes from curved to flat. But that’s ...