Despite being commercially available, the legality of using such devices varies by region.
These jammers respond to growing concerns about privacy amid a proliferation of ever-listening smart devices.
How Do Microphone Jammers Work?
Microphone jammers work by interfering with how microphones work.
Jammers emit ultrasonic sound, which is above the normal hearing range of human beings.
Pump ultrasonic noise at a mic, and it can’t record voices.
Why Jam Mics Around You?
Think about how many microphones are around you at this very moment.
Your smartphone,smart speakers, maybe even yourTVall have microphones that are always listening.
University of Chicago
Related:Can Your Typing Style Be a Privacy Risk?
Even if you don’t realize it.
Can You Buy a Microphone Jammer?
In principle they’re all the same and will mention something about ultrasonic sound in the product description.
Related:Are Smart Speakers Safe for Kids?
However, your mileage will most likely vary.
Before you mash that buy button, there is the (not insignificant) issue of legality.
