The boards, which usually carry typical advertising, are programmed to identify approaching Mini drivers through a coded signal from a radio chip embedded in their key fob. The messages are personal, based on questionnaires that owners filled out: “Mary, moving at the speed of justice,” if Mary is a lawyer, or “Mike, the special of the day is speed,” if Mike is a chef.
Bonus: This piece of hardware was probably too precious to use for simple advertising and is most likely being used to have terrorists surrender or turn simple people into murderers by now...
A&E Paranormal State wallscape billboard created with the "Audio Spotlight" technology.
Loudspeakers focuses ultrasonic beams which turn into audio near the target.
Sounds in your head rather then from a speaker...
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