User's Manual

ANDROID QUICK START GUIDE USE THE KEYBOARD 40
In some languages, you can also enter punctuation by speaking it, like
“comma,” “period,” “question mark,” “exclamation mark,” or
“exclamation point.” Supported languages include English, French, Italian,
German, Spanish, and Russian.
To improve processing of your voice input, Google may record a few
seconds of background noise in temporary memory at any time. This
recording remains on the device only temporarily and is not sent to
Google.
To change your speech settings, go to Settings >
Personal > Language & input.