Comfortable Ergonomic Design: After thousands of samples of palm data, we designed this ergonomic mouse. The mouse has a streamlined arc and thumb rest to help reduce the stress caused by prolonged use of the mouse. The side pits help reduce slippage and maximize your feeling of use!Save Battery Life: Up to 15 months battery life, you don't need to worry about changing batteries frequently! This computer optical mouse will be in sleep mode in 8 minutes of inactivity. Press any button to wake it up. Note: powered by 1*AA battery (not included).Easy to Use: No need for any driver, and you can plug and play the wireless mouse directly. Plug and play! This computer mouse support 33ft wireless connections, you can avoid being bothered by the power cord and use this mouse anytime, anywhereMulti-function Wireless Mouse: 5 levels DPI: 800/1200/1600/2000/2400, easily change the cursor sensitivity depending on your activity. Two side buttons that you can use to control page forward/backward for increased productivity. Advanced technology helps the mouse move around the computer screen smoothly!Wide Compatibility: Well compatible with Windows7/8/10/XP, Vista7/8 and Linux, etc. Fits for desktop, laptop, PC, Macbook, and other devices. A universal portable mouse designed for office, family, travel, business meetings, etc.?