Abstract: A radio device for a wireless network comprising: an outer protective casing housing an electronic transceiver circuit; and four radiating elements carried by the protective casing and having orientations that differ from one another. The outer protective casing is configured in such a way that, when it is set on a plane surface, it sets itself with just one radiating element substantially perpendicular to the plane surface; the radio device is able to determine autonomously the orientation assumed and comprises an automatic selector for selecting the radiating element set substantially perpendicular to the plane surface.