American scientists have invented a muffler bracelet for microphones

This invention was developed by a team of computer science professors at the University of Chicago.

Now that smart microphones and voice assistants are so widespread, and people more than ever value their privacy. If you don't trust the digital giants and want to keep your privacy to yourself, you might be interested in this new invention from scientists at the University of Chicago.

It's a bracelet that curbs the operation of microphones. Wearing it, you can be sure that your words will not be written or taken down by anyone. The bracelet works due to 24 speakers emitting ultrasonic signals. Microphones perceive ultrasonic signals as noise, and can't pick up other sounds in the room.

And although for now, this is only a prototype, the researchers believe that it won't be too complicated to create a mass production of this device. According to a rough estimate, a bracelet will cost about $ 20. You have to agree; It's a low price to pay to keep your privacy.