1. Own tooling, Patent design
2. No ball, no dirt, no cleaning
3. Optical technology help the mouse work well on most surfaces
4. Scroll and zoom easily with the mouse wheel
5. Compatible with Microsoft Windows 98/Me/2000/XP/NT4.0, windows vista
6. Unit size: 98*54*32MM
Packing: 1PC/blister bag/white box, 100PCS/CTN
Carton size: 42.2*25.7*54.5CM
2. No ball, no dirt, no cleaning
3. Optical technology help the mouse work well on most surfaces
4. Scroll and zoom easily with the mouse wheel
5. Compatible with Microsoft Windows 98/Me/2000/XP/NT4.0, windows vista
6. Unit size: 98*54*32MM
Packing: 1PC/blister bag/white box, 100PCS/CTN
Carton size: 42.2*25.7*54.5CM