Optical Mouse PS/2 & USB Combo
Rainbow Shining Optical Mouse SWOP-3-2 by A4 Tech
MSO-PU-A4-RB-BL

* 3 Programmable Buttons
* Single Scrolling Wheel
* 800 CPI Optical
* Both Handed Design
* Noiseless Comfort Wheel
* iWheelWorks Program