Normal plugs and sockets based upon two round pins with centres spaced at 19 mm are in use in Europe, most of that happen to be detailed in IEC/TR 60083 "Plugs and socket-outlets for domestic and equivalent common use standardized in member countries of IEC. Be sure to fill out https://typesofmicrophonesusedint30517.alltdesign.com/details-fiction-and-types-of-electrical-plugs-by-country-49181791