| 摘要 |
PURPOSE: A wireless microphone used as a wireless handsfree is provided to perform a telephone call by wireless using a body of a cellular phone in a state in which a user does not hold the cellular phone. CONSTITUTION: A necklace(1) is used as an antenna for radiating a radio wave by inserting a conductor into a sheathing. A microphone(11) embedded in a body has an effective structure as to an engine noise of a vehicle or howling environment because the microphone(11) is located near a mouth of a user who performs a telephone call. In the discomfort situation, a user maintains a call in secret by inserting an earphone into an earphone jack(2). When a call is received from the object, a handsfree is in an automatic termination state by pushing a talk button(6). If a display lamp is turned on, a radio wave is radiated. If the telephone call is ended and the talk button(6) is pushed, the handsfree is in a call disconnection state. If a user pushes a off button(7), the handsfree is turned off and the radio wave is not radiated.
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