The Tour Guide leads the group by means of a wireless tour guide system (receiver, headphone and microphone). For a €50 deposit at the counter, all participants are handed a receiver and a headset at the start of the tour.
The Tour Guide hands his microphone to the presenter at each respective stand. We know from previous experience that any disturbances caused by other sound systems on the fairgrounds will be detected early on the first day of the fair and are generally quickly fixed.