A4tech OP-620D 2X Click Optical Mouse

• Dimension Mouse: 4.68L x 2.48W x 1.39H in.
• Product Weight: 0.19 Ib.
• Package Includes 2X Optical Mouse
• System Requirements Plug and Play for Windows98/ME/2000/XP(X64)/2003(X64)/MCE2005/Vista X86&X64
• Outbox Dimension 60pcs/1.44cuft/ctn