There's a privacy bracelet that jams smart speakers and, hell yeah, bring it

Smart speakers are creepy recording devices that eavesdrop on unsuspecting people. A new piece of custom technology offers the chance to fight back. 

Stylized as a cyberpunk bracelet, a "wearable jammer" was developed by a trio of professors at the University of Chicago. In addition to looking punk rock as all hell, the device emits ultrasonic noise that interferes with microphones' ability to record yet is inaudible to humans. 

Oh, and the professors — Ben Zhao, Heather Zheng, and assistant professor Pedro Lopes — published schematics online so the more technically proficient of you can make one at home.  Read more...