The Microsoft Surface Precision Mouse helps you stay productive with flawless transitions, magnetic scrolling for precise control and three programmable buttons. Smooth scrolling and precise on-screen movement Three programmable buttons Can be used with up to three computers simulataneously Supports both Bluetooth and USB wired connections More ways to multi-task Surface Precision Mouse gives you more multi-tasking power by allowing you to work seamlessly across up to three computers. Supports both Bluetooth and wired USB connections!