Turn on Hey Google. On your Android phone or tablet, open the Google app . Read gboard google voice search is not supported on your device for more information. To enable voice input Open the on-screen keyboard. For many Android devices, Google keyboard comes as a default keyboard. Tap the menu, then tap More. Important: On some devices, you can only say "Ok Google." Almost all Google Voice calls to the U.S. and Canada are free when you're calling from the U.S.; Calls to a few places in the U.S. and Canada cost 1 cent per minute (USD), or the listed rate for your local currency ; Calls to places outside the U.S. are at listed rates Under "Hey Google," tap Voice Match. Turn on voice search. On your Android phone or tablet, open the Google app . Sign in to your Google account. To use your existing Google Voice number on any Android device, with a new carrier number , then you can set up any phone number to take your Voice calls and texts. You may press the mic option on the Google keyboard, but it states something like Google Voice Search not supported on your device. Tap the gear icon, then tap Typing > Voice & other Read more… Start a voice search. Like any other software, the Google Voice Search also fails to work sometimes. If the app does not appear responsive, you should clear cache and possibly reinstall it. At the bottom right, tap More Settings Voice.