| 摘要 |
An earphone has a body, a connecting element and a speaker. The body has a distal end, a joint, a core, a base, an outer side, an inner side, and a connecting cylinder. The joint extends from the distal end. The base is formed in the core. The connecting cylinder is formed on the inner side. The connecting element has an inner side and an outer side. The outer side is formed annularly multiple tabs and multiple circular recesses. The multiple circular recesses are formed respectively between the multiple tabs and hold respectively the multiple protrusions inside. The speaker is mounted in the base. Therefore, manufacturers can switch between the different connecting elements to provide both a plug-type earphone and an insert-type earphone during the manufacturing process.
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