Features:1.RF2402MHz-2480MHz 2.RF operation channel16automatic frequency hopping 3.Rated voltage1.5V 4.Rated current12-20mA 5.Max. Acceleration14ft/Sec 6.USBver 1.1/2.0 System requirement1.use with Windows 2000/XP/Vista/Linux/Win 7/MAC operation system2.One USB available port.Product feature:1.2.4GHz digital wireless transmission,operation distance is up to 10 meters.2.built-in mouse memory,no recoding is needed after battery replacement.3.Intelligent Power-saving technology,the service life of one alkaline battery is up to six months 4.Intelligent connectivity,no need to code,plug-and-play.5.Ergonomically designed,comfort grip. 6.Dormant class control and more power-saving hibernation connectionless.7.800dpi/1200dpi cursor speed adjustable.8.Shortcut button can be used to browse the Internet or applications, easily on the toolbar "forward" and "backward" function9.Power swith,in the case of not using power off completely. Cautions:1.Operation distance is closely related to the environment.2.Battery life may be different for personal habit of using mouse.3.In case of mouse failure,please check battery power and replace it as necessary4.The mouse will shut off automatically and enter sleeping mode for saving power when it's not used for a long time.To wake it up,press the right or left button.5.Never waste the battery and will it in fire.Put battery into battery recycle bin.Package include:1pc* Wireless Mouse (battery is not include)Power supply: 2pcs AAA battery