2024-11-06 [☆] Fith Ops Perimeter Signal
(terrible website, but wares look cool: https://www.youtube.com/watch?v=LbH3vsbFyPQ) "In our tests 209 is rated at 124dB and the .22 (5C22) is 130dB."
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2018-04-22 [☆] https://www.getzone.com/category/sootchzone-channel/
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