1. A communication device comprising: a microphone; a speaker; an input device; a display; an antenna; a voice communication implementer, wherein voice communication is implemented by sending and receiving audio data via said antenna; a stereo audio data output implementer, wherein stereo audio data stored in said communication device is processed to be output in a stereo fashion; a photo quality setting implementer, wherein a photo is stored in said communication device with the user identified quality; a multiple language implementer, wherein a language selected by the user from a list of multiple language candidates is registered, and when said communication device is powered on, the user interface of said communication device is displayed with the registered language; and a remote control implementer, wherein said communication device initiates a communication device controlling task in response to a communication device controlling command received from a host computer, wherein said communication device controlling command is generated in response to a user instruction being entered via a phone which is the device operable to implement voice communication, and wherein said communication device causes, upon said communication device controlling task being completed, said host computer to transfer to said phone a communication device controlled notice which is the notice indicating that said communication device has completed said user instruction.