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"Human beings hardly ever learn from the experience of others. They learn; when they do, which isn't often, on their own, the hard way."
- Robert Heinlein

Voice-Changing Bowtie  
  Special device allows wearer to take on the voice of another person at will.  


(Voice-changing tie)

From Case Closed (Detective Conan), by Gosho Aoyama.
Published by Shonen Sunday Magazine in 1994
Additional resources -

Young Detective Conan uses this device to disguise his voice when speaking to others by phone.


(Voice-changing tie)

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Additional resources:
  More Ideas and Technology from Case Closed (Detective Conan)
  More Ideas and Technology by Gosho Aoyama
  Tech news articles related to Case Closed (Detective Conan)
  Tech news articles related to works by Gosho Aoyama

Voice-Changing Bowtie-related news articles:
  - VAuth Voice Security Wearable From University of Michigan

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