What does the lightning symbol mean?
Arstotzka Ministry of Admission
Official bulletin
Inspector,
your booth has inspection hardware installed. The lightning symbol indicates that your conversation with the entrant is being recorded. Review the audio transcript to find discrepancies. The audio transcript is located behind the microphone.
Refer to the wikia for updated information on the features of your booth. Internet use for recreational purposes at your workplace will result in a citation.
Follow all protocols strictly.
Glory to Arstotzka.