49ers go paperless at Levi's Stadium. For some fans, that's not
International Association of Venue Managers Levi's® Stadium
San Francisco: Levi's Stadium going cashless when fans return
Levi's Stadium – SportsTravel
Levi's® Stadium Transitioning to Cashless Venue to Enhance Fan
Levi's Stadium – SportsTravel
49ers' Levi's Stadium to go completely cashless when fans return
A Tour of the Super Connected Levi's Stadium
Levi's Stadium opens to 49ers' fans rave reviews