They are game pads. Its actually just a LAN party

I spent like 40 minutes looking into this and even found full articles about it where people have no clue but the best guess was some kind of audio obscuring and audio recording devices. Like the center ones might block long distance listening methods while the little ones allow them to talk through the disturbance.

Just for signatures. Instead of passing around the forms, they have them sign those. Your bank has them.