"one of four MIDI Robovoxes in the world - previously owned by Kraftwerk. Designed by Florian Schneider, Gert Ott and Gert Jalass, this custom speech synthesizer was used by Kraftwerk live for songs such as "Radioactivity". It had limited controls, and was originally used in conjunction with custom software written for the Atari 1040ST."
To read, hear and see more, head on over to Matrixsynth (where I stole this).
Kraftwerk's future live setup