The Wedge Touch Mouse is Microsoft's smallest mouse ever, designed primarily for use with tablets. Connecting to your device via Bluetooth, you don't need cords or wireless tranceivers; and with Microsoft's BlueTrack technology you can use the Wedge Touch Mouse on almost any non-glass surface with either hand. Its defining feature is four-way touch scrolling in every direction: up, down, left, and right. When not in use, the mouse shuts off automatically.