Nintendo Channel
The Wii system supports wireless connectivity with the Nintendo DS handheld console with no additional accessories. This connectivity allows players to use the Nintendo DS microphone and touch screen as inputs for Wii games. "Pokémon Battle Revolution" is the first example Nintendo has given of a game using Nintendo DS-Wii connectivity. Nintendo later released the Nintendo Channel for the Wii allowing its users to download game demos or additional data to their Nintendo DS.