I am sure you can think of the wonderful capabilities/possibilities of controlling ‘unnecessary’ chatter with the Speech Jammer

“So how is this possible? Professor Kurihara explains that it is based on the principle that when we talk, we listen to ourselves in order to confirm that we are speaking correctly. If the sound from our voices reaches our ears within 100 milliseconds, then our brains can confirm that we are saying what we wish to say. But if you delay that time the brain thinks that you aren’t speaking correctly so it has to stop and adjust itself in order to speak correctly. The SpeechJammer artificially sets up the situation by delaying the time that it takes for the speakers words to get to his brain, shutting him up.”