Fecha de publicación: 03/05/2002 Fuente: WIPO "apis" PURPOSE: A mobile hands free device is provided to make a telephone call of a mobile phone possible during a movement, perform functions as an amplification or a noise removal of a voice signal without using an earphone.CONSTITUTION: In a hands free device being used by combining to a mobile phone having a mobile phone connection port including a voice terminal and a power supply terminal, a hands free jointing port(58) is combined with the mobile phone connection port and connected with the voice terminal or the power supply terminal. A position fixing unit is fixed by receiving an external position fixing connector. A speaker(52) and a mike(53) convert a voice signal and a voice. A circuit unit is operated by receiving a power source from the mobile phone through the hands free jointing port(58). One end of the circuit unit is connected to the mobile phone, and the other end thereof is connected to the speaker(52) and the mike(53) for processing and controlling a voice signal. The position fixing connector includes a necklace string(61) and a variable clip(62) having a clip button(62a) for adjusting a length of the necklace string(61).© KIPO 2002