It's a system San Jose-based Fetch Robotics developed to help retailers be faster and more agile in their deliveries. Companies are adapting as online buying options like Amazon Prime, Google Express and eBay Now have gotten more popular.

Fetch, the taller of the two, grabs goods with its product-picking arm and dumps them in Freight, the short, squat, bin bot that follows Fetch around and then scuttles items to the shipping area at speeds maxing out at three meters per second.

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