SODIAL Mini 3 Buttons USB Optical Mouse Pink for Laptop PC Computer Product Name : USB Optical Mouse ; Interface Type : USB ; Resolution : 1200 DPI Button Number : 3 ; system Requirement : Windows 2000, ME, XP and Vista Casing Material : Plastic ; Color : Pink Cable Length : 54.8cm;Dimension : 3.7(L) x 2(W) x 1.3(H)cm Weight : 80g