The PRASSYS-8E is the latest version in a line of proximity noise-cancellation devices, used by paramilitary forces to muffle any noise made during individual movement operations. The model is an acronym, which stands for "Proximity Audio Suppression System"; more commonly known by their street term "muffle kits" or "PASS kits". They were manufactured by Burling & Mason Technologies, and are powered by protocells.
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