Walmart is switching from traditional paper price tags, as shown on the right, to electronic shelf labels, as shown on the left. Dominick Reuter/Business Insider

Walmart is rolling out digital price tags in its US stores, and public reaction has been mixed.

I visited two locations to see how the tech works for employees and customers.

The change for shoppers is small right now, but the tech could lead to some interesting improvements.

A big change is afoot at Walmart, and some shoppers are starting to notice.

It all comes down to one of the smallest (but most important) features of any store: price tags.

The retail giant's adoption of so-called digital shelf labels in place of traditional paper ones is causing a bit of confusion and concern about whether shoppers will get a fair deal.

Several lawmakers have filed bills to prevent the tech from being used for surveillance pricing or surge charging.…