The media in the modern era are as follows:

1. Movie projector: The worker played by the protagonist Charlie Chaplin operates a movie projection in a factory.

2. Billboard: Workers spray paint the billboard.

3. Machines: Workers operate machines on the production line, showing the scene of mechanized production in the industrialization era.

4. Music: The soundtrack in the movie uses musical instruments such as piano and harmonica.

5. Signboards: In some scenes, you can see the signboards of shops, bars, etc.

6. Newspaper: There is a scene with the front page of a newspaper in the movie.