Slim, light, and ready to travel, the Microsoft Surface Arc Wireless Mouse features a unique design that can conform to your hand or snap flat to fit inside your bag. The Surface Arc mouse is fully compatible with Windows computers and connects via Bluetooth 4.1 and 2.4 GHz RF. It also features numerous refinements, including the ability to scroll both vertically and horizontally. Powered by two AAA batteries (included), you can simply snap it into its curved position to power it up, then snap again to flatten and power down.