The Studs on This Punk Bracelet Are Actually Microphone-Jamming Ultrasonic Speakers

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  • February 18, 2020

You can prevent facial recognition cameras from identifying you by wearing face paint, masks, or sometimes just a pair of oversized sunglasses. Keeping conversations private from an ever-growing number of microphone-equipped devices isn’t quite as easy, but researchers have created what could be the first wearable…

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