Specification:
RF channel: 16, automatic frequency hopping
Rated voltage: 1.5V
Rated current: 12-20mA
. Acceleration: 14ft/Sec
USB: Ver 1.1/2.0
Power Supply: 2 x AAA Battery(Not included)
Color: Red, Gray, Black (Optional)
Size: 11 x 6.9 x 3.7cm / 4.3 x 2.7 x 1.45inch
Package Weight: 63g
Quantity: 1pc

System requirement:
1. Use with 2000/XP/Vista/Linux/Win 7/ system
2. One available USB port

Package included:
1 x Optical Gaming Mouse
1 x Receiver

Cautions:
1. distance is closely related to the environment.
2. Battery life may be different for habit of using mouse.
3. In case of mouse failure,please check battery power and replace it as necessary
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 .
5. Never waste the battery and throw it in fire. Put battery into battery recycle bin.

Note:
1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding.
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.