2.4G drahtlose Maus

1.operating frequency 2.4GHZ,enjoy your freely wireless space,the distance is <10M> 2. The fourth key, page up funtion 3. The fifth key, page down funtion4. the sixth key,twoposition changing speed: 800-1600 CPI 5. Comfortable rolling wheel6.With power on/off switch, battery life be prolonged7Automatically save power sleeping functions. battery life be prolonged8.The mini USB receiver can hide on the bottom of the mouse(Open the battery cover can see)9. Working on any surface except glass10. Compatible with Win95, 98, 2000, ME, XP, NT