RTO, originally Radio Tramissioni Ossola, was founded in 1977 with the goal of creating a single radio station to cover the entire Insubria region. After nearly fifty years, RTO remains a leading radio station for the area, entertaining listeners with Italian and international hits and providing constant news and updates. The station is deeply rooted in the territory and actively participates in major local events, concerts, and festivals as a media partner in both Italy and Switzerland.