Microcenter is offering a free Google AIY Voice Kit Preorder with the purchase of a Raspberry PI3.
it is for in store pickup. The preorder value for the voice kit by itself is $25.
Google AIY Projects brings do-it-yourself artificial intelligence to your maker projects. With this AIY Voice Kit from Google, you can build a standalone voice recognition system using the Google Assistant or add voice recognition and natural language processing to your Raspberry Pi based projects. The kit includes all of the components needed to assemble the basic kit that works with the Google Assistant SDK as well as on-device voice recognition with TensorFlow.