RADIO TELEPHONE APPARATUS

A radio telephone comprising a main body enclosing a transmitting circuit and a receiving circuit; a handset removably mounted to the main body, the handset including a microphone electrically connected to the transmitting circuit and a speaker electrically connected to the receiving circuit; a voice recognition circuit for recognizing a voice input to the microphone and for performing a dialing operation based on the voice. An extension module is removably mounted on the main body. A mute switch, which also enables the voice recognition circuit, is removably connected to the main body, or to an extension module removably mounted on the main body, thus adding to the portability of the radio telephone.