... patent.Model:V205Patent No.:ZL 200630153840.8Features:1. Fashion design ;2. mini finger mouse;3.gift box and blister card is optional ... ;4.no need battery;Functions:1.laser pointer,2.page up/down,3.mouse left/right button,Dimension:80 ... Cable Length: 1.5MUSB plug-and-play, no driver requiredOperating system: Microsoft Windows 98, Se, Me, 2000, XP, Mac os, Linux ...