This is the Microsoft Sculpt Comfort Bluetooth Mouse model H3S-00003. The blue Windows touch tab on Sculpt Comfort Mouse revolutionizes the relationship between hardware and software, providing quick and easy access to your favorite Windows 8 features. Quickly navigate to the Start screen and access apps faster by pressing the center of the sleek blue tab to switch between your current app and the Start screen. This allows you to simply swipe up on the tab to cycle through all of your open apps, or down to reveal all the open apps and select the one you want. Sculpt Comfort Mouse features Bluetooth connectivity, so you can easily pair your device with your PC or tablet and not worry about using cords or transceivers. As well, its BlueTrack technology works on virtually any surface.