So you are worried about your phone or laptop being compromised and used to listen to your conversations? The Nope Microphone Blocker can help. It is an electronic sound blocker that is detected as an external microphone, turning off your device’s onboard microphones in the process.
This gadget doesn’t take a whole lot of space and is compact enough to fit on your keychain. It works with laptops, smartphones, and tablets.[where to get it]