Crowdsync Bluetooth Low Energy (BLE) Beacon BLE beacons are compact transmitters that broadcast radio signals to nearby smartphones and tablets. They are optimized for long battery life and can be used in various environments for asset management, logistics, and item tracking. The device uses a coin cell battery, as indicated by the symbol on the right side of the image. They are often used in proximity marketing to send notifications or offers to customers in a specific location. The lanyard is custom 1-1/2" dye-sublimated satin ribbon with a full-color imprint. It features the Microsoft logo and event text "CELA Global Summit FY25"