The identifiers, which are invisible to visitors, are positioned either on or next to the exhibits. Each identifier has a special ID code that it transmits constantly. As soon as visitors enter the magnetic field of the identifier, the guidePORT picks up the identifier code and triggers transmission of the appropriate recording. The strength of the magnetic field is such that it poses no risk whatsoever to health. The range of the continuous signal can be flexibly set between 30 cm and 3 m. The range can be easily extended and areas clearly delimitated with the installation of additional elements.
This means that every single visitor can enjoy his or her own tailor-made tour from the word go, without queues or delays.
Nevertheless, recordings can be interrupted for announcements, warnings or other organisational information.