In the past few years, we have covered plenty of microphone jammers that can prevent audio spying. The HARP Mini is also worth a look. It is a smart gadget that uses an ultrasonic noise to prevent connected devices from picking up your conversation. It has a range of 3ft in diameter.
The HARP Mini can be activated the touch of a button or through its app. It is compact enough for you to easily take anywhere.
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