A focused speaker is a device that generates mid to high-frequency audio in a narrow beam of soundwaves. Unlike low-frequency soundwaves, mid to high-frequency sound can be focused almost like a laser beam. These waves travel at long distances but are loudest at the center. They are only heard by those standing in front of the […]

Directional speakers like the Soundlazer have many possible uses that can make the distribution of information much more efficient and eliminate the unnecessary stray sounds that can occur with the standard speakers. Directional speakers, or parametric speakers, work in such a way that they distribute soundwaves over a small area like a laser beam. That is […]

Crowd control devices are tools and non-lethal weapons that are used by the police and other authorities when crowds riot or civilian unrest occurs. In many cases, they can help resolve a situation peacefully. Police and military also use crowd control devices to deescalate hostile situations. Crowd control devices can be effective technologies when compared […]

We have already talked about non-lethal weapons in general. Here, we will focus on the acoustic non-lethal weapons and analyze some of the types of non-lethal weapons that use sound as a deterrent. We will learn how they work, their purpose, and some of their history. A non-lethal acoustic weapon is a tool or a […]

Non-lethal weapons are growing in popularity with police forces and even the military in recent years. Police most commonly use them for crowd control and riots, but they can also be instrumental in demobilizing or disorienting enemy military forces without killing them. But what exactly are non-lethal weapons, and in which contexts can they be […]