| 摘要 |
An earpiece is disclosed. The earpiece includes a housing forming a volume therein, a number of sound holes arranged in the front end and rear end of the housing, a sound generator accommodated in the volume, an ear gel attached to a front end of the housing, a wire electrically connected to the sound generator, wherein a adjusting module is assembled to the housing, a plurality of front vents are disposed on the front end of the housing, and the amount of the front vents communicating with the volume is mechanically altered by the adjusting module. |
