Alphabet's Google Home (GOOGL) - Get Report just did something that's (AMZN) - Get Report Alexa can't do: Shoppers can now ask the home assistant to find a specific item at a local store.

The feature will be added in the coming months and Google VP of product Jonathan Alferness explained how it will work on CNBC.

"'OK Google, where can I find a brown pair of men's Top-Siders, size 11, nearby?' The Assistant will answer with how many stores have the item and how far away they are," he said.

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The feature is powered by local inventory feeds that retailers that buy ads on Google send. Participating retailers include PetSmart, Saks Fifth Ave., Bed Bath & Beyond, (BBBY) - Get ReportHome Depot, (HD) - Get Report and Sephora.