Huh, TIL. I've seen paragliders fly without headsets though near me (30mins from my states capital). Earning a radio license and getting a comms setup seems trivial though.
Look for the blue SFC (surface) with a line over it designation around the area for the airport with the multiple concentric blue rings. Those will be class B airports. Typically two rings and magenta will be class C. Class D will be dashed blue.
