Patent ID: 8218808

Claim:
An earphone configured for being coupled to a first audio output socket or a second audio output socket, the earphone comprising: a main body comprising: a sleeve adapter; at least one earpiece; and at least one cable configured for electrically connecting the sleeve adapter to the at least one earpiece correspondingly; and a plug module detachably connected to the main body, the plug module comprising a first end and a second end which are electrically connected to each other, a diameter of the first end being different from that of the second end; wherein in a first mode the first end is plugged into the sleeve adapter and electrically connected to the sleeve adapter, and the second end is capable of being coupled to the second audio output socket; and wherein in a second mode the second end is plugged into the sleeve adapter and electrically connected to the sleeve adapter, and the first end is capable of being coupled to the first audio output socket.