Yondr case locks up phones during concert to prevent people from recording performances

SAN FRANCISCO — A company called Yondr has created a way of preventing concert-goers from using their phones at performance venues.

Before entering a performance venue, attendees would place their cellphones inside a Yondr case. The attendees would be in possession of the Yondr cases at all time, but would not be able to open them to access their phones while they’re located inside the concert venue.

To access their phones, the attendees must step outside the concert venue and unlock the Yondr cases at unlock stations.