* Welcome to store， I hope you like the style， I wish you a happy shopping! ** This product does not contain batteries， need to buy your own， please understand! *Commodity basic parametersType: Optical MouseAnd computer connection: WirelessOptical Resolution: 1600 (dpi)Keys: 2 (key)Interface: USBWireless transmission frequency: 2.4GHzWhether to support ergonomics: SupportOperating distance: 10 (m)Work: PhotoelectricFeatures: novelty， unique， personalizedProduct size: 60 * 30 * 30MMColor: yellow， purple， black， pink