To provide an earphone apparatus capable of managing a physical condition without obstructing movements by mounting a pulsimeter and a clinical thermometer on the earphone apparatus without the feeling of incompatibility even when mounted on the body.

The earphone apparatus is characterized by that at least two selected from an acoustic speaker (33) for amplifying and outputting acoustic signals, a body temperature detection means (32) for detecting the body temperature of a human body by an infrared system and a pulse detection means (31) for optically detecting the pulsation of blood flowing through the blood vessel of a human body are housed in a case (29) and integrated.