LED wristbands are now a common feature of large arena concerts and events, with a variety of capabilities and technical implementations. In the video after the break, Wall Street Journal does a ...

The idea behind the PixMob wristband is simple — at a concert, organizers hand these out to the concertgoers, and during the show, infrared projectors are used to transmit commands so they all ...

From arena-sized concerts like Taylor Swift ... WSJ goes behind the scenes with one LED company, PixMob, to see the tech behind the wristbands. Photo illustration: Madeline Marshall ...

wrote one Taylor Swift fan on TikTok after the US singer’s concert in Cardiff earlier this summer. Probably not. Flashing multicoloured LED wristbands have become the must-have item on pop stars ...