An Electronic Shelf Label (ESL) system is used by retailers for displaying dynamic product pricing on shelves. Typically, electronic display modules are attached to the front edge of retail shelving. These modules use electronic paper (E-paper) or liquid-crystal display (LCD) to show the current product price to the customer. A communication network allows the price display to be automatically updated whenever a product price is changed. This communication network is the true differentiation and what really makes ESL a viable solution. Automated ESL systems reduces pricing management labor costs, improves pricing accuracy and allows dynamic pricing. Dynamic pricing is the concept in which retailers can fluctuate pricing to match demand, online competition, inventory levels, shelf-life of items, and to create promotions.