(The USB receiver is located on the back of the mouse.)No drivers are required. Soft click & Stable Connection: Elegant design and responsive buttons, offers a very smooth click with little noise. 2.4GHz wireless transmission technology provides a powerful and reliable connection up to 10m. Universal Compatibility: Perfect for Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10, Mac OS, etc. Auto Power Saving Mode: This mouse has NO on&off switch. However, you don't have to worry about the high power consumption problem. The mouse will automatically go into sleep mode after 10 minutes of inactivity. While During this time, the mouse consumes almost no power. Then you can press any mouse button to activate the mouse and work.