To provide a ball for ball game for a visually impaired person, which is extremely suitable for a game, flies and emits sound, and can be caught aurally, in order to solve the following problems: a conventional ball for ball game does not emit sound or cannot be caught aurally, while there are many visually impaired persons who enjoy ball games.

The sound source ball is configured to have projections or grooves formed on the whole inner surface of a hollow ball. This sound source ball is encapsulated in balls for various ball games.