We all need one of these for someone we know!

[tartist]

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Click: Human Mute Button

I have often mimed pressing the mute button on an imaginary remote controller whilst pointing it at my jabbering wife. Now my dream has come true!

It works just like those faulty internet phone connections you sometimes get when you hear your own voice echoed back to you; it gets impossible to speak..

[TVC_H4U]

I can see libraries installing these on their walls for automatic talking detection and reduction.