Wearable Microphone Jammer

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According to a NYT article Mr. Zhao and Ms. Zheng with the help of an assistant professor, Pedro Lopes crated a bracelet that jams the microphones of smart speakers.

http://sandlab.cs.uchicago.edu/jammer/

https://www.nytimes.com/2020/02/14/technology/alexa-jamming-bracelet-privacy-armor.html?fbclid=IwAR0ufTn7GTjQCsm6J07J9lYyFlJRlJjZRkv-1jymgkoxCHRxSL-JNo0mfHM

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