Wireless Numeric Keypad 18Keys Portable Number Numpad with 2.4G Mini USB Receiver for Laptop Notebook, Desktop, Surface Pro, PC- Black NUMERIC-WIRELESS Connectivity Technology USB Keyboard Description Gaming Recommended Uses For Product Gaming Special Feature Indicator Light Color 2.4G+Black Operating System Windows XP, Windows Vista, Windows 8, Windows 7, Windows 2000, MAC Number of Keys 18 Keyboard backlighting color support Single Color