Wireless Hands-free to get rid of connection line between Mobile phone and Hands-free

摘要

PURPOSE: A wireless handsfree for removing a connection line of a portable phone and a handsfree is provided to perform a telephone call although any portable phone is mounted by removing a connection jack with the portable phone. CONSTITUTION: A microphone is installed in a speaker portion for removing a noise of an inputted signal and outputting the signal to the speaker through an amplifying unit and an output unit. An other input microphone is installed on an upper end of a handsfree for removing the inputted signal, and a speaker is installed at a rear surface portion of a portable phone. A half duplex circuit is inserted for removing howling. The microphone installed in the speaker portion of the portable phone is moved in all directions to be capable of being used in several kinds of portable phones.