Ultra Simple Installation: Plug & Play! Simply insert one AA battery (NOT included) and connect the receiver to your computer. (The USB receiver is located on the back of the mouse.) No driver required. Silent Click and Stable 2.4 GHz Connection: Stylish design and responsive buttons provide a super smooth click with low noise. 2.4 GHz wireless transmission technology ensures 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. Automatic Power Saving: This mouse does NOT have an on/off button. However, you don't need to worry about high power consumption. The mouse automatically enters power-saving mode after 10 minutes of inactivity. During this time, the mouse consumes almost no electricity. You can then press any mouse button to activate the mouse and resume work. 2.4G WIRELESS MOUSE: With advanced 2.4G wireless technology, ensuring a reliable connection up to 10m. The elegant design with silent click allows you to focus on your work without disturbing others. PLUG & PLAY: Super easy to use. 1. Insert the battery correctly. 2. Simply remove the USB receiver and plug it into the computer. 3. The mouse is already installed. POWER SAVING: The mouse enters sleep mode after 10 minutes of inactivity and can be activated by clicking any mouse button. Plug & Play Silent Click Portable and Convenient Wide Compatibility The click lifespan for the left/right button is 3,000,000 clicks. Plug & Play: Super easy to install, just unplug the USB receiver from the back of the mouse and plug it into your computer, and you're ready to go!