BUZZ Investing: Meme Stocks Lead the Charge etftrends.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from etftrends.com Daily Mail and Mail on Sunday newspapers.
In a cashierless store, customers scan a smartphone app to enter, then cameras and sensors track what they remove from the shelves. The retailer then bills the customer using credit or debit cards on file.