Type:AA type, Interfaces:1 x USB - 4 PIN USB Type A, Movement Detection Technology:Optical, Features:Scrolling wheel, rubber side grips, Nano wireless receiver, Performance:Realtime sensitivity switching 800/1200/1600 dpi, Movement Resolution:1600 dpi, Connectivity Technology:Wireless, Interface:2.4 GHz, OS Required:Microsoft Windows XP, Microsoft Windows Vista (32/64 bits), Microsoft Windows 7 (32/64 bits), Windows 8 (32/64 bits)