1.Interface: combo (USB + PS/2).
2.Wire Length: 150cm.
3.Compatible with Windows 95/ 98/2000/ XP/NT/ Windows Vista/Windows 7.
4.Combo (USB + PS/2) with scroll wheel for convenient to use on line.
5.Typical mouse movement test value:  Above 800dpi resolution.
6.Mouse body material: ABS.
7.Typical mouse movement life test: > 1,000,000 Cycles/Key.
8.Work voltage: 5 VDC + - 5%.
9.Operating Temperature: 0℃~40℃.
10.One year guarantee.
11. Microsoft Windows 95/98/ME/2000/XP/NT /Windows Vista/Windows 7.
12.Compatible with PC PENTIUM 233 or above computer.
13.Available USB or PS/2 connecter.
14.Product size:114*66*38mm.
15.Package size:215*135*38mm.
16.Weight:126g.