... ,waterproof,dustproof. 4.Protable rii mini wireless keyboard 2.4g with touchpad Product specifications:Ultra slim design: the flexible keyboard‘s ... condition for daily use . Operation of Computer system requirements:Work with Windows 98, ME, 2000, XP, Vista and Apple operating ... , the keyboard using a battery installed,Code of the keyboard Leds flash to show battery installed well.2 .At the same time ...