Funkwerk AG develops and sells communication, information, and security systems worldwide. It provides train radio systems, including cab radio systems, ETCS data radio, data radio, handhelds, analogue radio, datasheets, TETRA train radio systems, and test equipment; LTE voice radio systems; visual and acoustic passenger information systems, such as FIA, CURA, accessibility, and monitors, displays and columns, as well as equipment and services; public address systems; and physical security information management systems.