e/Shabbat microphone

Information
has gloss	eng: A Shabbat microphone is a non-electrical sound augmentation system that uses acousto-fluidic technology to allow Rabbis or Hazzans to amplify and transmit their voice without affecting the electrical current of the microphone in order to hold congregations without breaching laws set out in the Halakha regarding Shabbat.
lexicalization	eng: Shabbat microphone
instance of	c/Shabbat innovations