Bingo has evolved from paper cards to digital play, making it easier to join a...

https://measuralogic.com/what-happened-to-the-bingo-card-the-technology-reinventing-a-classic-game/

Bingo has evolved from paper cards to digital play, making it easier to join a game anytime. Auto-dabbers now mark numbers automatically, so you don’t miss a call in 90-ball sessions