2. The simultaneous interpretation system of claim 1 , wherein the portable terminal has an interpretation program which interprets the original language voice speech signal into the interpreted language voice speech signal.
13. The simultaneous interpretation system of claim 2 , wherein the portable terminal comprises: an input part for outputting an input signal to select at least one language for the simultaneous interpretation; a communication part for allowing communications between the wired/wireless headsets; a display part for outputting a selection screen to select the at least one language for the simultaneous interpretation between the wired/wireless headsets; a voice processor which receives the original language voice speech signal from one or more microphones to be interpreted from the wired/wireless headset, and a speaker which outputs the interpreted voice speech signal; and a controller for detecting a corresponding input signal of the input part, and converting the original language voice speech signal into an interpreted voice speech signal of the first translated language.