1. 2.4GHz wireless optical mouse, effective distance 10m. 2. Buttons: 6 buttons (include a scroll wheel). 3. 2-Levels DPI Adjustable: 800/1200DPI. 4. Operating frequency: 2.420GHz~2.480GHz. 5. Tracking method: Optical technology. 6. Switch Life: 300,000 cycle. 7. Mini USB receiver, plug and play (Insert the mini receiver into computer USB combo, the mouse has been matched with the receiver when out of factory. You can use this mouse directly after insert the receiver.). 8. Support system: Windows 2000 / XP / Vista / 7, etc. 9. Power by 2 x AAA battery (not included).
