Download of Speakerfone 2.0 for Mac was available from 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 application lies within System Tools, more precisely General.
From the developer:
Speakerfone is coded in Applescript, designed to assist disabled people or those that want to have fun with OS X's built in speech synthesis. It simply displays a window with a text box. You type in the text box, press return, and your computer will speak whatever was typed in the default voice (Set in Speech Preferences pane). Repeat.