Researchers build wearable jammer to stop smart speakers listening in - https://newatlas.com/wearables/ultrasonic-wearable-jammer-smart-speakers/

If the growing proliferation of always on, always listening smart speakers in our homes is making you a little uneasy, researchers from the University of Chicago might have the answer: a wearable bracelet that jams the microphones in speakers, smartwatches, and smartphones alike.


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