iBeacon is a new technology that uses Bluetooth low energy (BLE) to allow smartphones to detect and react to signals being broadcast by low-powered wireless beacons. The beacons, called iBeacons, broadcast a signal that includes a universally unique identifier (UUID) that smartphones can use to determine their proximity to the beacon. This enables a wide range of location-based interactions and applications, such as receiving discount coupons on a smartphone when passing by a store. iBeacon technology is inexpensive and can be used for indoor navigation, retail experiences, security/geo-fencing, and more.