... 3.Factory direct price manufacturing keyboard and mouse:keyboard Type: Wired Application: desktop, notebook Keyboard Dimensions: 443mm (L) × 135mm ... , bring you a good mood every day. Item: 3D Optical Mouse patent NO.:201030576553.4Colors: black, red, green, ... comfortable, crisp button, moderate intensity, 1000DPI high-precision optical positioning technology, mobile fast and sensitive, stable non- ...