What are beacons?
Beacons are little devices with Bluetooth functionality and can send notifications to smartphones on the basis of location proximity. The technology is employed to notify people of discounts, events, promotions, or other alerts to buyers when they're buying in-store. The store's app needs permissions from the customer to track his/her location even when the app is not in use or else customers can open the store app when they’re close to a store to look for offers.