This is kind of what I was saying yesterday. There is someone more significant that Sprengstoff in this story, but we haven’t yet seen who it might be. In a more typical Tracy story, we would already know.
All jokes aside, it’s actually up-to-date technology in a retro package. The Wrist TV was long ago replaced by a couple of new generations, but the latest one developed an exploding battery problem and Diet Smith went back to this old-style exterior, temporarily, several years ago. It doesn’t have a screen but it can project an image into mid-air behind it.
This would be Totten Senior and Totten Junior, father and son that run the company.