TELEPHONE SET

PROBLEM TO BE SOLVED: To keep excellent speech quality of the portable telephone set provided with a close-talking type ECM independently of its operating mode and to enhance the operating convenience. SOLUTION: When a flip 3 is turned open with respect to a main body 2, both sound holes of a close-talking type ECM 11 are open and a sound wave acts on a diaphragm in both directions, and in the case of making a speech while approaching the close-talking type ECM 11 to the mouse of the user, a proximity effect is obtained and the excellent speech quality is ensured. On the other hand, when the flip 3 is turned closed with respect to the main body 2, one sound hole of the close-talking type ECM 11 is closed by a packing 24, only the other sound hole is open and the sound wave acts on the diaphragm in one direction only. That is, the close-talking type ECM 11 acts like an omnidirectional ECM virtually and even in the case that a speech is made while the close-talking type ECM 11 is apart from the mouse, the excellent speech quality is ensured.