Quote Originally Posted by “Jon Fingas”
A prototype bracelet omnidirectionally jams and eliminates blind spots (where transducers cancel each other out) through wrist movement. It's more effective than dedicated stationary jammers because it scrambles hidden mics.

This is ideal for anyone who does not want to be eavesdropped on by voice assistants, spies and hidden mics, especially for people who tend to move from room to room. If worn in public, it would create havoc with phone calls and other mic-dependent devices.

While this device keeps meetings secret, it could also help politicians avoid accountability during secret...
Prototype pic:
https://o.aolcdn.com/images/dims?qua...e90802222c0e90

Full story:
https://www.engadget.com/2020/02/15/...ming-bracelet/