... computer accessory---keyboard and mouse 1.Patent NO.:201030576576.5 and 201030576553.4 2.CE and RoHS 3.Factory direct price computer ... Optical Mouse patent NO.:201030576553.4Colors: black, red, green, sapphire blue, pink, white, yellow, orangeBrand: IndependentPlug and Play: SupportAnd Computer ... button, moderate intensity, 1000DPI high-precision optical positioning technology, mobile fast and sensitive ...