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emf detector
i got this emf smog detector that scans the airwave frequencies starting from 200Mhz to 8Ghz its got a tiny piezo speaker its strange but its almost like you can hear a voice coming through its tiny speaker admittedly the duration was short each and sounded clanky i even went as far to say some words out loud and it responded almost right away. i bought the device to measure harmful emf waves
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