Narco News and its team of technical engineers and counter-surveillance consultants has identified the apparatus as the LRAD-X Remote Long Range Acoustic Device, manufactured by the American Technologies Corporation.
The instrument is an offensive weapon, used on US Navy warships and by other nations, which can emit sounds that, “Through the use of powerful voice commands and deterrent tones, large safety zones can be created while determining the intent and influencing the behavior of an intruder.”
The LRAD-X machine can shoot sounds of up to 151 decibels. According to the US National Institute on Deafness and Other Communications Disorders sounds less loud than those it produces can cause Noise Induced Hearing Loss (NIHL): “Sources of noise that can cause NIHL include motorcycles, firecrackers, and small firearms, all emitting sounds from 120 to 150 decibels. Long or repeated exposure to sounds at or above 85 decibels can cause hearing loss. The louder the sound, the shorter the time period before NIHL can occur.”
The front of the device looks like this:
And this is the back of the device:
In other words, the LRAD-X is the source of the high-pitched and pain-inducing sounds that have been fired both at those inside the Brazilian Embassy and turned around when anti-coup demonstrators have tried to come close to it. As such, it interferes with the Vienna protected inviolability of the Embassy and its free communications.
Under international law, this violation already serves as sufficient justification for intervention by UN Peacekeeping Forces of the multinational kind that the country of Brazil has led in Haiti.