This wireless mouse features a modern contoured design with a sweat-resistant, skin-friendly finish and a thoughtful ring and little finger rest for maximum comfort. Its sturdy rubber scroll wheel ensures a non-slip grip. With plug-and-play convenience, no drivers are needed, and 2.4GHz wireless transmission offers a reliable connection up to 43 feet. Durable construction passes 6,000,000 keystroke tests, ensuring long-lasting performance. Powered by 2 Aaa batteries (not included), the mouse enters sleep mode after 7 minutes of inactivity for energy savings and quickly reactivates with any button click. It is compatible with Windows 7/8/10/Xp, Vista 7/8, Mac, Linux, and various devices like laptops, desktops, PCs, and MacBooks. Side buttons are unavailable for Mac Os, but all other functions work seamlessly. The mouse comes with a 45-day money-back guarantee and a 365-day worry-free warranty. Notice, the side buttons are not available for Mac Os, the other function can be used normally