It is official, we have just gained the call for tenders of the RATP concerning audio beacons! By the end of 2019, it is not less than 1500 beacons which are going to guide the visually impaired people users in the subway. An amazing victory for our team which on this occasion developed a new version of its audio beacon. NAVIGUEO + HI-FI is born ! It answers the specifications of the Parisian transport network and more generally the complex spaces (transport networks, airports, etc.).