There’s a new security officer in town. But this one runs on batteries, not Dunkin’ Donuts.

Next time you’re visiting the Prudential Center, don’t be alarmed if you bump into a large, rolling robot as it travels the corridors where shoppers pop in and out of stores.

No, it’s not an oversized Roomba on the loose. It’s the “Knightscope K5,” an egg-shaped autonomous machine equipped with real-time monitoring and detection technology that allows it to keep tabs on what’s happening nearby.

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