A supermarket trip may soon look different, thanks to electronic shelf labels
![An employee arranges a digital price tag for vegetables at the Whole Foods store in the Silver Lake neighborhood of Los Angeles.](https://npr.brightspotcdn.com/dims3/default/strip/false/crop/4000x2667+0+0/resize/4000x2667!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2F16%2F54%2Faaec6d844c73acc1883de3ead6c3%2Fgettyimages-534343598.jpg)
With electronic shelf labels, prices can change up to six times a minute. Grocers including Walmart, Whole Foods and Schnucks are adopting them.
(Image credit: Patrick T. Fallon)
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