Speech Toggle is a very simple freeware menu extra for Mac OS X which enables you to easily toggle Apple's speech recognition (Speakable Items) on and off. The software prevents you from having to make a trip to the System Preferences every time you feel the urge to temporarily use speech recognition.
The software doesn't require an installer; just copy it to your Applications folder and launch. To set it to auto-launch, add it to the Login Items in the Accounts pane of your System Preferences.
Also, check out our speech page for more tips and information. Speech Toggle is open source for your peace of mind.