3 ADJUSTABLE CPI LEVELS: This wireless mouse features 3 adjustable DPI switches (800, 1200, 1600), allowing you to freely control your speed. No drivers needed, simply plug and play. HIGH DURABILITY AND LONG WORKING RANGE: Tested for 500,000 keystrokes and performs flawlessly. 2.4 GHz wireless technology extends the working distance up to 30 feet. ERGONOMIC DESIGN: The contoured shape keeps your hand comfortable even after long hours of use. The USB Nano receiver can be conveniently stored in the back compartment of the mouse. WIDE COMPATIBILITY: Compatible with most systems including Windows, Mac, and Linux. Suitable for laptops, PCs, notebooks, computers, MacBooks, and other devices. LONG BATTERY LIFE: Enjoy up to 6 months of battery life. This wireless mouse utilizes advanced energy-saving design, so you no longer have to worry about frequent battery replacements.