Hello, I'm working on an android that will be used at Burning Man.  Since this event is in the middle of nowhere and there is virtually no cell signal available, I'm trying to design it with capabilities that do not require an internet connection.  I know most AI features will not be functional, but what IS available?

Will the pandorabot I'm working on be functional?  Are there plugins that will support speech recognition and synthesis without requiring an internet connection?

Thank you for any and all help!