In a portable communication apparatus of the invention, an inner wall (22) of an openable/closable member (2) faces the front face of a diaphragm of a close-talking microphone (5) via a sound path (64), and an outer sound hole (27) faces the rear face of the diaphragm of the close-talking microphone (5) via a sound path (65). An inner sound hole (26) is biasedly located in a position which is close to a free end of the openable/closable member (2), and the outer sound hole (27) is biasedly located in a position which is close to the center position of opening and closing movements of the openable/closable member (2), thereby obtaining a speech quality of a very high S/N ratio at a substantially same degree in both the cases where the openable/closable member (2) is opened, and where the member is closed.