I used a reward to ask their purposes. The Sheriff claims three are "storage"--whatever that means--one is for broadcasting, and the other two are communications and record keeping.

All of them are undoubtedly rigged.

I assume "broadcasting" is for relaying our little game to the audience. His employers. Storage could be anything. [He glances at Jason. He signs, Clones?] Communications and record keeping...

Contacting his employers possibly? And a record of all of the games they have held.