From Audiovisual Identity Database
The Wii U, initially known by its codename Project Café is a home video game console released in North America on November 18, 2012 and in Japan on December 8, 2012, as a successor to the Wii. Due to poor sales, selling only 13 million units as of 2019, it was discontinued on January 31, 2017, and shortly after, it was succeeded by the Nintendo Switch.
(November 18, 2012-January 31, 2017)
Logo: On a white background, we see the Wii logo. Next to it is a rounded blue square with a "U" cut out of it.
Music/Sounds: Originally a 3-note synth theme, now none on TV. However, on the Wii U GamePad, a synth piano tune can be heard.
Availability: Only seen while the Wii U is booting up.