The 2022.08.14 version of Mic to Speaker - Virtual Mic for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program lies within System Tools, more precisely Device Assistants. The actual developer of this free software for Mac is Alok Singh.
From the developer:
Mic to Speaker - Virtual Mic lets you use your device as a live microphone. First, you plug your device into a stereo system and then you just fire up the the Virtual Mic app. Using it, you can get everyone's attention, make announcements, go wireless with Bluetooth and Airplay streaming.
You may want to check out more Mac applications, such as WO Mic Client, Speak & Learn Chinese or Speak & Learn German, which might be related to Mic to Speaker - Virtual Mic.