LED wristbands ... into these wearable light shows. Finally, we get a good behind-the-scenes look at how they are controlled. Using pan-tilt IR emitters mounted on lighting towers, the operators ...

WSJ goes behind the scenes with one LED company, PixMob, to see the tech behind the wristbands. Photo illustration: Madeline Marshall ...

PixMob units are wearable LED devices intended for crowds of attendees ... Suspected IR emitter for the PixMob units, mounted on a lighting tower (marked here in white). PixMob hardware has ...

Wristbands are surely this decade’s equivalent. With two button batteries, a mini circuit board, tiny computers, LED lights, a Lilliputian radio receiver, the outside shell and thick strap ...