In 90 or 75 ball bingo games there are of course 9/75  balls, which only have numbers.

During the game, the balls are mixed and released for the caller to announce. Once a ball has been used, it is withdrawn from the game. The game then continues until the player who has gotten all of their numbers shouts Bingo. This could be anything from 30 balls to 60 and above.

Portable machines are generally made of durable plastic. These machines include a number generator, number display, check board and jackpot functions.

Consoles are free-standing units made of good-quality wood. These machines are larger than the portable machines, and generally have more features.