ECOiNVA Wireless Iron Man Mouse 2.4G Optical Computer Mouse for Desktop Laptop PC Mac (Silver),1. 【Resolution Optical】800/1200/1600 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces.,2. 【2.4GHz Wireless Mouse】Ensures reliable connection with an increased working distance of up to 33' (15m) and eliminates delays, dropouts and interference.（USB receiver hidden in the battery compartment）,3. 【Ergonomic Design】The perfect ergonomic contours design provide all day comfortable even after long hours using. Also the led blue light can be switched ON/OFF by the switch button at the bottom which can bring you cool feeling.,4. 【Wide Compatibility】For Windows 7, 8, 8.1,10, Linux, and Mac. Works for Notebook,Chromebook,PC,Laptop,Computer.(Battery NOT included),5. 【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!,