After installation, once customers are within a certain range of the beacon inside or outside the store, promotional advertisements, text messages and Useful product information such as discount coupons, gift vouchers, etc. pushed towards their phone. This encourages shoppers to buy more at a much lower price or with combo deals or coupons that will push them to make the next sales and build their curiosity about the store. And thus increasing the return on investment.Dash ButtonWith Amazon's launch of its Dash Button on March 31, 2015, many considered it an April Fool's joke, which proved successful later in the year. These buttons are a great example of how easy it is for you (or any member of your family) to order inventory and maintain stock. It's a small WiFi device directly connected to AmazonFresh, which will provide you with its supply so you'll never forget an item again. This is a brilliant example of IoT that also works on home sensors to measure the usage of any item and automatically request an order. With the success rate of Dash Button, we can expect other retailers and online merchants to launch such IoT device to increase their sales and enjoy customer satisfaction.