| 摘要 |
An earphone comprises two headphones, a plug assembly and a wire electronically connected to the headphones and the plug assembly. The plug assembly comprises a main pole, a first plug set in one end of the main pole and electronically connected to the wire, a sleeve placed over the first plug, and an adjusting wheel screwed on the main pole. The adjusting wheel is configured for driving the main pole to move when receiving an exterior force, thereby driving the first tube body to extend out of the sleeve or receive into the sleeve. |
