1)Optical:PSII/USB/Combo
2) 1200dpi
3) Compatible with Windows95/98/2000/XP/NT
4)Ergonomic engineering designing, suitable for either right-handed or left-handed person.
5)Size: 121*65*35 mm

Packing informtaion:

MEAS: 50.5*47.5*27.5CM G.W./N.W.: 13.5/12.5KGS QTY: 100PCS