Do you hear voices or noises that nobody else does? Well, you’re either crazy and need to get your head checked, OR you are experiencing a new sound technology which can send sound through the air like a laser so that only one person can hear it:
“This enables the companies to transmit a highly focused sound somewhat like how a flashlight beams a focused light. A person can speak in a normal voice and be heard privately up to 600 yards away — yet anyone more than a couple of feet to either side of the intended listener won’t hear a thing. Additionally, the targeted beams can reflect off a hard surface, making it seem as though the sound is actually emanating from that surface.” - Hollywood Reporter
One of the inventors is an MIT grad (of course).
You can read more on this technology in this article.
Or you can check out the two companies websites:
American Technologies - Hypersonic Sound (HSS) Technology
Holosonic Research Labs - Audio Spotlight
Buy the stock - ATCO and you won’t cry in 5-10 years (LOL). Absolutely amazing stuff, you will be hearing from them real soon (American Technology).