| 主权项 |
1. A noise-reducing headphone, comprising:
a headphone housing comprising an accommodating space and a sound output hole, the accommodating space being communicated with the sound output hole; a speaker unit disposed in the headphone housing and positioned in the accommodating space, the speaker unit comprising a speaker unit housing and a diaphragm disposed on the speaker unit housing, the diaphragm facing toward the sound output hole and comprising a central through hole and an annular vibrating portion around the central through hole, the diaphragm producing sound waves toward the sound output hole by vibrations of the annular vibrating portion; and a microphone disposed on the speaker unit housing and positioned in the central through hole, the microphone being coaxial to the central through hole, one face of the microphone facing toward the sound output hole, the other face of the microphone facing toward the inner of the headphone housing. |
