3 ADJUSTABLE CPI LEVEL. This wireless mouse owns 3 Adjustable DPI Switch800, 1200, 1600control your own speed freely. No need any driver, plug and play directly. STRONG DURABILITY AND LONG WORKING DISTANCE. 500,0000 Times keystroke test and perform well. 2.4GHz Wireless, increase working distance of up to 30ft. ERGONOMIC DESIGN. Contoured shape keeps your hand comfortable even after long hours. And the USB Nano Receiver can be stored in the back slot of the mouse. WIDE COMPATIBILITY. Compatible with most system including Windows, Mac and Linux. Fit for Notebook, PC, Laptop, Computer, MacBook and other device. LONG BATTERY LIFE. Up to 6 Months Battery Life. This wireless mouse uses advanced power-saving design. No longer have to worry about frequent Battery replacement!