Amazon looks to the sky to store products
The online retailer launched its thumb-sized Dash button in 2015, allowing Prime members to re-order products such as Tide detergent, Huggies diapers and Gillette products by pushing a button.
Amazon testing cashier-free retail store
Prime customers can create virtual dash button on "millions" of Prime eligible products on Amazon, the company said in a video.
The online retailer said that it was also automatically creating virtual Dash buttons for products that are frequently purchased by customers.
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