On Monday, Amazon revealed its new concept for a grocery store with no lines and no checkout.
The retail giant's new brick-and-mortar store, Amazon Go, sells grocery essentials and pre-made meals.
Customers check in at the entrance using an app. Then, they grab whatever they need and exit the store when they're done.
Amazon says it tracks purchases using computer vision and advanced sensor technology.
The flagship store will open in Seattle, Washington, in early 2017.