An earphone device having composite functions at least has an earphone
shell body, a loudspeaker, and an adjustment component. Several outer
sound holes are disposed on the outer side of the earphone shell body.
The loudspeaker is fixed in the earphone shell body. The loudspeaker is
arranged outwards. The adjustment component is disposed on the earphone
shell body. There are several adjustment holes corresponding to the outer
sound holes of the earphone shell body on the adjustment component. The
adjustment holes of the adjustment component can be controlled to be
opposite to or be staggered with the outer sound holes of the earphone
shell body. The earphone device is comfortable for use and can reduce
pathological changes in ear and hearing decay to keep the human body
healthy. Moreover, the earphone device has the functions of earphone,
sound amplifier, and sound box.