A connection to the owner's bank account
Their name is programmable into their memory chip (although some owners choose to leave the default, "K-9"), and the AI is very humanoid, capable of understanding and creating sarcasm, metaphors, similes and analogies. They are often seen rolling about the Parliament building, and one is currently located at the World Assembly headquarters, serving Ambassador Rupert Pink. K-9 units are not available for export. Yet.