Patent ID: 8447062

Claim:
An earphone assembly comprising: an electrical connector; two earphones; and two cords electrically connecting the electrical connector with the earphones, each of the cords comprising two wires connecting the electrical connector with a corresponding earphone and a zip chain containing the wires, the zip chain of each cord comprising an elongated main body, and a first latching part and a second latching part protruding from the main body towards the other cord, a receiving groove being defined between the first and second latching parts for receiving the second latching part of the other cord when the two cords are engaged with each other in such a manner that the first and second latching parts of each cord block the second latching part of the other cord from escaping from the receiving groove; wherein the first latching part has a right trapezoid cross section, and the cross section of the second latching part is an isosceles trapezoid, the first latching part comprises a first surface perpendicularly extending from the main body, a second surface obliquely extending from the main body, and a third surface connected to the first surface and the second surface, the second latching part comprises two inclined surfaces obliquely extending from the main body and an outer surface connected to the two inclined surfaces, and the receiving groove is defined between the second surface of the first latching part and one of the inclined surfaces of the second latching part adjacent to the second surface of the first latching part.