Which innovative feature was FIRST introduced in specialized sports retail POS systems around 2018-2019 that revolutionized the in-store experience?

The sports retail industry has undergone significant transformation with technological advancements. Point of Sale (POS) systems in sporting goods stores have evolved from simple cash registers to sophisticated platforms that integrate inventory management, customer data, and omnichannel capabilities. This poll tests your knowledge about modern POS innovations specifically designed for sports retailers and how they've changed the game for both merchants and customers.

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Virtual reality fitting rooms allowing customers to 'try on' equipment in simulated environments
Mobile POS with RFID technology enabling sales associates to complete transactions anywhere in-store while tracking inventory in real-time
AI-powered dynamic pricing that adjusts product costs based on real-time competitor analysis and in-store demand
Blockchain-based authenticity verification for high-value sports memorabilia and limited edition merchandise