Which technology is NOT typically integrated into modern retail smart shelf systems?

Smart shelves are transforming retail operations through real-time inventory management and enhanced customer experiences. These technological innovations combine RFID technology, weight sensors, and digital displays to create intelligent retail environments. As retailers seek competitive advantages in an increasingly digital marketplace, understanding cutting-edge retail technologies becomes essential for business professionals and economics students alike. Test your knowledge about this revolutionary retail technology!

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RFID (Radio-Frequency Identification) sensors for inventory tracking
Weight sensors that detect when products are removed
Blockchain verification for each individual product placement
Digital price displays that can update dynamically