Rechargeable Smart Wireless Mouse Optical LED Backlit Colorful Light Silent Ergonomic Comfortable. Comfortable Ergonomic DesignThe mouse is ergonomic and fits right in the palm of your hand. High quality material and non-slip design provide the better hand feeling for you, which make your use more comfortable. The USB Receiver can be stored under the battery cover when not in use, taking up no space and making it portable for travel. Multi-function Wireless Mouse3 levels DPI: 800/1200/1600, easily change the cursor sensitivity depending on your activity. You can use to increased productivity. Advanced technology help mouse moves around the computer screen smoothly! Easy To Use & Stable ConnectionReally plug & play design, no drivers need to be installed. 2.4GHz wireless transmission technology provides a powerful and reliable connection. Wide CompatibilityCompatible with Windows 98 SE/SME/2000/SXP/2003, Compatible with Mac OS. Auto SleepThis mouse will switch off when your computer is turned off or the receiver is disconnected. When the mouse is inactive for 10 minutes, it will automatically enter sleep mode, and you can wake it up with any click. Reduce the trouble of frequent battery replacement!