The human female and her co-workers all carry these devices. They’re used to let the lab teachers communicate with their minions. A conversation usually goes something like this:
Minions: Go ahead.
Teacher: We need <however many> of <lab supply> in room <X.>
Minions: We’ll be right there.
I am seizing control of channel 11 and co-opting this device for my own uses. Sigyn, if you push the “talk” button, I will order the minions to bring us some snacks, some cold drinks, and a movie to watch on the lab’s television. Anything else?