Features: _x000D_ _x000D_ 2.4GHz digital wireless transmission,operation distance is up to 10 meters. _x000D_ Portable and weight light, very convenient to carry and store. 800dpi/1200dpi adjustable cursor speed. _x000D_ With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing. Shortcut button can be used to browse the Internet or applications quickly. _x000D_ Intelligent Power-saving technology, Power switch, the service life of one alkaline battery is up to six months. _x000D_ Built-in mouse memory, Intelligent connectivity, no code needed, plug-and-play. Ergonomically designed, comfortable grip. _x000D_ _x000D_ Specification:_x000D_ RF: 2402MHz-2480MHz _x000D_ RF operation channel: 16, automatic frequency hopping _x000D_ Rated voltage: 1.5V _x000D_ Rated current: 12-20mA _x000D_ Max. Acceleration: 14ft/Sec _x000D_ USB: Ver 1.1/2.0_x000D_ Power Supply: 2 x AAA Battery(Not included)_x000D_ Color: Red, Gray, Black (Optional)_x000D_ Size: 11 x 6.9 x 3.7cm / 4.3 x 2.7 x 1.45inch_x000D_ Package Weight: 63g_x000D_ Quantity: 1pc_x000D_ _x000D_ System requirement:_x000D_ 1. Use with Windows 2000/XP/Vista/Linux/Win 7/MAC operation system_x000D_ 2. One available USB port_x000D_ _x000D_ Package included:_x000D_ 1 x Wireless Optical Gaming Mouse_x000D_ 1 x Receiver_x000D_ _x000D_ Cautions:_x000D_ 1. Operation distance is closely related to the environment._x000D_ 2. Battery life may be different for personal habit of using mouse._x000D_ 3. In case of mouse failure,please check battery power and replace it as necessary_x000D_ 4. 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._x000D_ 5. Never waste the battery and throw it in fire. Put battery into battery recycle bin._x000D_ _x000D_ Note:_x000D_ 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.12.4GHz digital wireless transmission,operation distance is up to 10 meters. 2Portable and weight light, very convenient to carry and store. 800dpi/1200dpi adjustable cursor speed. 3With 6 Keys, including Scroll Wheel, Page Forward and Page Backward buttons for easy Internet Surfing. Shortcut button can be used to browse the Internet or applications quickly. 4Intelligent Power-saving technology, Power switch, the service life of one alkaline battery is up to six months. 5Built-in mouse memory, Intelligent connectivity, no code needed, plug-and-play. Ergonomically designed, comfortable grip.