Someone who was observant well beyond the bounds of the human norm might notice that Sarah had a few new-ish-to-the-classroom accessories today -- chunky diamond stud earrings in place of her usual hoops, and a watch that looked almost mannish on her delicate wrist. But for the most part, she looked entirely normal in her blouse and jeans, if on the cheerful end of the spectrum for her.
"Good afternoon," she said, once the students seemed to be there. "Today we're talking about tools that spies use for surveillance and communication -- listening bugs, but also things agents can wear on their person to keep in touch with base without using normal phone systems."
She held up a disk about the size of a thick quarter. "
This is a standard modern bug. It's designed so it adheres to the bottom of any piece of furniture you want; it can also be mounted inside a phone to record conversations. It'll transmit via radio frequencies." She went on to give the technical specs of the bug, including the range of the microphone, how long it would last and the quality of the sounds it transmitted.
"If you're an agent and you go out in the field, you'll probably be miked. Right now, I'm wearing send/receive transmitters in my earrings and my watch, and I've seen them in shoes, bracelets, bras, pendants ... anything that a person can wear without arousing suspicion. Some watches even have full Internet access built in for quickly looking up information."
"For your activity today, I've brought a
few toys. None of this is the highest-tech stuff on the market; these are products made for and marketed to civilians. But they should still keep you busy for the rest of the class period. I'm around if you have questions."
[OOC: Please assume the toys on the tables have brochures near them explaining what they are and how they work. Thanks!]