... FCC,CE,ROHS standard 4.Interface:USB PS/2 U+P High-precision Sensor 3D 1000DPI Optical Wired Mouse1.Optical engine ... on any surface except glass and mirror8.buttons life:over 5,000,000 times9.competitive price and excellent quality10.Zoom in ... /2,U+PCable:1.5M Button:3 buttonsButton life time:5,000,000 timesResolution1000 DPIPorduct material: ABSStandard:FCC, CE, ROHSWarranty:1 ...