Features:
Professional high precision optical tracing engine, precise positioning
Optical technology works on most surfaces
6 buttons, including scroll wheel, left button, right button, forward, back, DPI switcher
Bright LED colors showing in turns, give you a colorful visual effect
Support plug and play
Ergonomically design, long-term use without fatigue
Suitable for high-end players, gaming professional players
Specifications:
Connect Way: USB cable
Tracking System: Optical
DPI: 800/1200/1600/2400DPI
Support System: Windows 98SE/2000/XP/Vista/7 etc
Cable Length: Approx. 124.5cm
Item Size: Approx. 12(L) x 8.2(W) x 3.5(H)cm
Nice, Windows 7 etc compatibility, doesn't expressly state that it's compatible with Windows 8. You'd think that would be way more important to talk about than Windows 98SE.
No offence but it looks like shit and dpi means nothing if the sensor is garbage.