Which retail technology innovation, introduced around 2010-2013, uses battery-free tags that can be read without line-of-sight and revolutionized inventory accuracy from typical 65% to over 98%?

In the world of retail technology, innovations often transform how businesses operate and interact with customers. The early 2010s saw a particularly significant advancement that fundamentally changed in-store inventory management and customer experience. This technology represented a breakthrough in how physical retail spaces could leverage digital capabilities, creating a more efficient and responsive shopping environment. Test your knowledge about this transformative retail technology!

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RFID (Radio-Frequency Identification) inventory systems
QR code-based inventory tracking
Bluetooth Low Energy (BLE) beacons
NFC (Near Field Communication) shelf labels