An acoustic weapon is a device that uses sound waves to incapacitate or deter individuals. These weapons can emit loud noises or focused sound waves that can cause discomfort, disorientation, or even physical harm. They are often used in crowd control situations by law enforcement or military forces. The technology behind acoustic weapons can vary, including systems that produce high-decibel sounds or directed energy beams of sound. Some examples include the Long Range Acoustic Device (LRAD), which is designed to communicate over long distances and disperse crowds. Acoustic weapons raise ethical concerns regarding their potential for misuse and the impact on human health.