The children's choir "Sputnik" took part in the film.
The cartoon was repeatedly released on VHS and DVD in cartoon collections: The Best Soviet Cartoons (1990s): Studio PRO Video.
In the cartoon from the transistor receiver sounds the verse of the "Summer Song" by composer M. Blanter to the verses by F. Lifshitz performed by Arkadiy Raykin.
Thesis (VGIK) directed by Valentin Karavaev.