If the Fn key on your Logitech keyboard won't launch the Dictation function (available on Mac OS 10.8 or later), you can change the shortcut. Here's how:

1. From the Apple menu, select System Preferences.

2. Click the Dictation & Speech icon.

   The Dictation & Speech window will appear, with the Dictation tab selected by default.

   

3. Select the On button if it isn't already selected.

4. Click the Shortcut drop-down menu, and select a different shortcut to launch Dictation.

NOTE: We suggest you select the Press Right Command Key Twice option.