3D OPTICAL MOUSE, resolution800DPI Sample rate:2300Frames/sec Press weight the switch can bear 60+5g Key life>1million times Connection type:PS/2 USB U+P Length of the line:1500mm Compatible operation system windows series Compatible hardwareconnect with IBM PC or compatible machine Consumption power <100mW Rating work voltage4.75~5.25V The best operating temp.: -10~45