| 摘要 |
An earphone plug accessory according to the present invention includes: a main plug which is inserted into an ear jack and includes n main connection units; an auxiliary plug which has a diameter which is smaller than the diameter of the main plug, is inputted to or outputted from the end of the main plug and includes m auxiliary connection units; and an elastic member which is located in the main plug, is shrunk when being inputted to the main plug by applying a force to the auxiliary plug, is extended when the force is removed, and outputs the auxiliary plug from the main plug to the outside. The earphone plug accessory has generality by transmitting and receiving an additional signal besides a simple sound signal through an earphone plug and being applied to a general earphone plug and a general ear jack. |
