| 摘要 |
PURPOSE: An earphone connected to a plurality of output devices is provided to enable user simultaneously to connect to output devices such as a cellular phone, a portable recorder, a portable CD player, a portable MP3 to speak while listening music by controlling the switch installed on the earphone. CONSTITUTION: Stereo type earphones are connected to both ears. A mike is connected to the stereo type earphones. A rotary switch is installed near the earphones, and is simultaneously connected to output devices such as a cellular phone, a portable recorder, a portable CD player, a portable MP3 and etc., which operation is controlled by the rotary switch. Therefore, a user can easily make a phone call without troublesome motion in a complex public place or during working.
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