A 4 Tech - 2 X Click Mouse

Product Dimension
Mouse:4.68L x 2.48W x 1.39H in.
Product Weight: 0.19 Ib.

This package includes
2X Optical Mouse

System Requirements
Plug and Play for
Windows98/ME/2000/XP
(X64)/2003(X64)/MCE2005/Vista X86&X64

Just one click"2X Button"straightly open files and programs easily.Save time and improve effiency.
No tracking ball to clean Precision optical sensor Works on most surfaces.