Invisible Peace Pole
A column made of sound.
Recordings of "May Peace Prevail on Earth" in various languges play when a motion detector senses someone in the invisible peace pole.
It's called HyperSonic Sound (HSS). It creates a narrow column of sound that has little spillover. People five feet away cannot hear it. But within the column it as like wearing a headset even though the sound source might be 200 feet away. It can sound as though someone is whispering in your ear or like a train is roaring past while people five feet away hear nothing.
Picture one small spot on the floor in a lobby or to the side of an entrance. Perhaps just the word "Peace" on the floor. If you stand there, the heavens speak.
The Cost
Two sizes available. The small one is $1999.00 not including mounting brackets, which are usually under $100 and the ipod or other device to hold the recordings.
The large one is around $3000.00, not including ipod and brackets.
The recordings are free.