*Mode:Wireless -2.4 GHz or 2.4 GHz&BT 5.0 *Operating Distance:15 m/49.2ft *DPI:800/1200/1600/2000/4000 DPI *5 Buttons Function *Click button : Mute button, the lifespan of 3 million times *Scroll : Rubber material with silent encoder, 300,000 times lifespan *Operating Voltage: 1.5V *Operating Current: 40mA *Insert the AA alkaline battery *Compatible Systems: Windows 7/8.1/10/11;macOS 10.5 or later; Linux;Chrome 0S;Android *Support Mac mode *Operating Temperature: -5°C~40°C/23*F~104*F *Storage Temperature: -10°C ~ 60*C/14*F~140°F - Blue