Here you can find a release of the sound files used in the Baozi Button. Whenever there is a new release with new sounds, there will be a new directory number with all old and new files in it that are used.
Licence for all sound files: CC BY-SA 4.0
To learn more about the Baozi Button, visit the page made especially for guests of the Chaos Communication Congress in 2018 (35C3).
https://baozi-business.de/insidebaozibutton/
Have phun!