| 摘要 |
PROBLEM TO BE SOLVED: To provide an earphone speaker module having a lower design cost and a better aesthetic appearance. SOLUTION: An earphone comprising an earphone housing and a speaker module is provided. The speaker module is disposed inside the earphone housing. The speaker module further comprises a speaker housing and a speaker unit. The speaker housing has a sound emission opening. In addition, the speaker housing constitutes a resonant chamber. The speaker unit is disposed inside the resonant chamber. COPYRIGHT: (C)2007,JPO&INPIT
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