Amazon has shut down three more stores featuring its Just Walk Out technology, but the company says it remains committed to building out that technology

Amazon is selling its cashierless technology called “Just Walk Out” to outside retailers. CNBC gets a behind-the-scenes look at how the technology works.

Amazon is hoping to grab grocery dollars away from its rivals by enabling consumers to get all their shopping done in a single trip.

Amazon says that it is launching a new warehouse with ten times as many robots. The company has been gradually increasing the amount and complexity of the robotic systems involved in sending out customers’ packages – and now says that is launching “next-generation” warehouses built on new systems.