HighlightsDual Mode Bluetooth & RF 2.4GHz modes.turn on the keyboard,press the "Mode"button ,you can switch the keyboard wireless connection mode easily between bluetooth and RF 2.4Ghz mode.2-Colors Backlight Wireless 2-Colors Backlight keyboard in Blue and Green colors for a darkness input,please note that this keyboard have not red color.System Compatibility this wireless backlit keyboard with bluetooth and RF 2.4Ghz mode could work with Android TV BOX ,Tablets,Smart TV ,PC ,Android ,Windows ,