Phone slots are digital slot games you can play on your mobile device anytime....

https://www.shelbycountyreporter.com/sponsored-content/phone-slots-explained-what-to-know-before-you-play-on-mobile-272a4a6b/

Phone slots are digital slot games you can play on your mobile device anytime. Before playing, check that the game uses a certified random number generator (RNG) to ensure fair outcomes