Which technology is NOT typically incorporated into modern smart shelf systems used in advanced retail environments?

Smart shelves represent a significant advancement in retail technology, combining IoT sensors, AI, and real-time analytics to transform the traditional shopping experience. These intelligent systems are changing how retailers manage inventory, engage with customers, and collect consumer behavior data. Test your knowledge about this innovative retail technology that's reshaping physical stores in our increasingly digital world.

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Radio-frequency identification (RFID) for automatic inventory tracking
Electromagnetic pulse (EMP) generators for customer attention routing
Weight sensors to detect when products are removed or misplaced
Digital price displays that can be updated in real-time based on demand