Patent ID: 8588453

Claim:
An earphone, comprising: a donut-shaped frame ( 7 ) connected with a T-shaped iron portion ( 10 ), a magnet ( 17 ) and a permeable U-shaped iron portion ( 12 ), and a high-frequency connective portion ( 13 ) attached with the permeable U-shaped iron portion ( 12 ) to form a double-magnetic-route element; a low-frequency diaphragm ( 8 ) attached to a low-frequency conductive ring ( 9 ), which is then attached to the donut-shaped frame ( 7 ), and then soldered with a low-frequency connective portion ( 11 ) disposed on the donut-shaped frame ( 7 ); a high-frequency diaphragm ( 15 ) attached to a high-frequency conductive ring ( 14 ), which is then attached to the permeable U-shaped portion ( 12 ); and a dust-proof cover portion ( 16 ) is fitted so as to protect the high-frequency diaphragm ( 15 ) and the high-frequency conductive ring ( 14 ), wherein the high-frequency conductive ring ( 14 ) is soldered with the high-frequency connective portion ( 13 ) and a reverse-direction co-axial sound generating unit including the double-magnetic-route element with a single magnet and is assembled.