Microsoft Surface Arc Mouse - Optical - 2 Buttons - Wireless - Bluetooth 4.0 - Poppy Red - Commercial. Simply snap into the curved position to power up. Snap again to flatten and power down. Scroll vertically and horizontally. Surface Arc Mouse supports your palm to sit comfortably in your hand. The revolutionary design of the Arc Mouse combines the comfort of a desktop mouse and the portability of a notebook mouse. Arc Mouse folds to 60% of its fully expanded size when you're on the go. The perfect complement to your Surface device.