Toshiba U20 USB Optical Mouse (Black)

Resolution: 1,000dpi
Optical Sensor: Blue LED technology
Plug and play: no installation of Software or batteries required
Wired mouse 3 buttons Optical tracking
Blue LED Technology will track on all major usable surface even on glass with regular environmental dust, but not totally clean glass
Use your mouse on any surface of your office or home, with Blue LED Technology (conditions apply)