Category:Acoustic hailing devices
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Media in category "Acoustic hailing devices"
The following 3 files are in this category, out of 3 total.
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HS-16 at LA protest with sheriffs copy.gif 1,600 × 1,200; 927 KB
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Hypershield 8-lo.jpg 335 × 640; 174 KB
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SPL Over Distance HyperSpike AHDs.png 484 × 352; 21 KB