Category:Acoustic hailing devices

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Acoustic hailing device

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This category has only the following subcategory.

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HyperSpike‎ (9 F)

Media in category "Acoustic hailing devices"

The following 3 files are in this category, out of 3 total.

HS-16 at LA protest with sheriffs copy.gif 1,600 × 1,200; 927 KB
Hypershield 8-lo.jpg 335 × 640; 174 KB
SPL Over Distance HyperSpike AHDs.png 484 × 352; 21 KB

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