There’s been a new innovation in the touristical world–“The Whisper,” wherein the guides wear a little microphone and talk quietly and the group walks along with little radio set around their necks and earphones. It has relieved the multilingual shouting in most public places, but makes for a weird sight. Group after group, plugged in and walking closely like baby ducks behind the gesturing guide.
On The Way 
Looks a bit odd, but is a real aural improvement, I sense. We haven’t seen these, but often wish we had. Now we’ll keep our eyes peeled.