They follow the principle "what you don't know can't hurt you" and turn completely silent at the first sign of danger. This prevents you from hearing anything that might alarm you.
-- 21 Quest, Dec 07 2023

Joo Janta, you say? https://www.goodrea...have-been-specially
Blatant plagiarism is an offence punishable by receipt of scathing remarks and similar [Sgt Teacup, Dec 07 2023]

In the 'Truth is Stranger Than Fiction, but Fiction Sure Is Real' Department, is it considered 'Baked' if our pal Douglas Adams did it first, but with sunglasses?
-- Sgt Teacup, Dec 07 2023


This is a companion device.
-- 21 Quest, Dec 07 2023


WHAT SPEAK UP I CANT HEAR A THING
-- pocmloc, Dec 07 2023


Next up: Joo Janta 400 smell cancelling nostril plugs. AI powered smell synthesisers use generic algorithms to produce the exact antidote in real time etc. etc. Do I win the internet today?
-- pocmloc, Dec 07 2023


Many people already use them for this purpose, myself included. Also, they don't need to work to work.
-- nineteenthly, Dec 16 2023



random, halfbakery