“We engineered a wearable microphone jammer that is capable of disabling microphones in its user’s surroundings, including hidden microphones.”
A bracelet of ultrasonic speakers that you can’t hear and microphones can’t ignore. Waving your hands while you talk fills the blind spots. Speech recognizers get garbage while the person across the table hears you fine. Every device in your house is listening by default. The fix is a bracelet you have to build yourself.