... USB keyboard support storage disk (SD, TF, Flash disk), support computer, Mobile phone MP3, MP4 etc Spec:(Dia)76*435mm MF- ... for USB keyboard ,support storage disk(SD,TF, Flashdisk),support computer, Mobile phone MP3,MP4 etcFunction DescriptionThis product is an advanced ... player and speaker. Keyboard can be used by connecting to computer without driver, which could realize the function of plug & play ...