A Bluetooth beacon is a small, wireless device that uses Bluetooth Low Energy (BLE) technology to transmit signals and communicate with nearby devices. These beacons are typically placed in physical locations, such as stores, museums, or airports, and can be detected by smartphones or other devices that have Bluetooth enabled. They serve as a virtual guide, providing information, notifications, and personalized experiences to users based on their proximity to the beacon. Bluetooth beacons have a range of up to 70 meters and are commonly used for location-based marketing, indoor navigation, and tracking assets. They are a powerful tool for businesses to engage with customers and enhance their overall experience.