Developed by InMarket, iBeacon mobile shopping is now available in more than 150 U.S. supermarkets in Seattle, San Francisco and Cleveland, with additional retailers and markets launching in the coming months.

The micro-location technology uses a low-energy Bluetooth signal to enable mobile app experiences with higher accuracy than GPS. Transmitters are placed throughout the store and shoppers who have downloaded the app are detected when they enter. Shoppers who opt-in can be reminded of items a spouse just placed on their shared list, earn loyalty rewards, or be directed to a custom special offer.

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Keywords: retail supply chain, wireless, location-sensing tech, supply chain IT, value chain IT