The Electric Café (Part 3)

I wanted to raise my hand and let him know that we wanted to speak to him, but apparently, he was on his way to our table.

"Hi, you must be the boss."
"Well actually, I'm one of the bosses."
"I see."
"Is there anything that I can help you with?"
"Well yes, as a matter of fact. My wife and I are really curious about that little piece of jewellery that your servers wear around their neck. Is it for sale?"
"Well...no." As he finished the sentence, he gave me a look that I didn't fully understand.
"Oh, okay. So it's just for your servers."
"I suppose you can say that."
"So it's a part of their uniform?"
"You can say that as well. Do you mind if I sit down?"
"Umm, yeah..sure, of course!"
"Well I don't really know how to put this to you, but the collar thing that you see around their necks is actually a part of our efforts to ensure good service."
"I'm not sure I understand."
"Well, you know how everyone's complaining about terrible service these days, and as you probably already know, the F&B line is terribly competitive."
"..."
"And so my partner and I, we came up with this strategy to maintain our service."
"Okay..."
"But I think the best way for you to understand what I'm saying here is through a demonstration."
"That would be great!"