The Seattle Seahawks gave blind and low-vision fans a new way to follow game action this season as one of several teams testing a device from Seattle startup OneCourt.

OneCourt’s laptop device uses generative audio and haptics to translate live gameplay into trackable vibrations, so fans can follow the action with their fingertips. The users hear the team’s radio broadcast that is synced with the device with almost little to no time delay, according to the Seahawks.

Testers at Lumen Field in Seattle used the devices at games, including against the Indianapolis Colts on Dec. 14, as part of the NFL’s pilot program exploring such accessibility. The Jaguars, Vikings and Falcons were the other teams in the pilot.

Participants shared feedback with the league and the Seahawks about how the device performed and takeaways will be analyzed and applied to an in-stadium accessibility strategy.

“Football is at its best when every fan can be part of the moment,” said Jonathan Beane, NFL senior vice president and chief diversity and inclusion officer, in a statement. “The OneCourt pilot showed how innovative technology can bring fans who are blind or have low vision even closer to the game, and the response was incredibly powerful.”

OneCourt was co-founded by a group of University of Washington graduates, including CEO Jerred Mace.

The NBA’s Portland Trail Blazers were the first professional sports team to provide OneCourt devices at every home game.