Bluetooth mouse for multiple devices: Works with Bluetooth-enabled PC or Mac computer or Windows 8 tablet. No receiver required.

12-month battery life: Go a year between battery changes (Battery life may vary based on user and computing conditions)

Windows 8 Start screen button: Easily switch between traditional Windows desktop/apps and the new Windows 8 interface

Fully customizable: Change the way buttons work to suit your preferences

Side-to-side scrolling: Versatile scroll wheel lets you instantly scroll left， right， up or down