MEDUSA (weapon)
Overview
 
MEDUSA is a directional, non-lethal weapon designed for crowd control
Crowd control
Crowd control is the controlling of a crowd, to prevent the outbreak of disorder and prevention of possible riot. Examples are at soccer matches, when a sale of goods has attracted an excess of customers, refugee control, or mass decontamination and mass quarantine situations . It calls for gentler...

 and exploiting the microwave auditory effect
Microwave auditory effect
The microwave auditory effect, also known as the microwave hearing effect or the Frey effect, consists of audible clicks induced by pulsed/modulated microwave frequencies. The clicks are generated directly inside the human head without the need of any receiving electronic device...

. It uses microwave
Microwave
Microwaves, a subset of radio waves, have wavelengths ranging from as long as one meter to as short as one millimeter, or equivalently, with frequencies between 300 MHz and 300 GHz. This broad definition includes both UHF and EHF , and various sources use different boundaries...

 pulses to generate uncomfortably high noise levels in human skulls, bypassing the ears and ear drums.
 
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