Patent ID: 7056127

Claim:
An audio plug comprising: a plug body connected to a cable leading to a headset; and an adapter having a channel plug to be plugged into a jack and capable of being detachably attached by magnetic force to the plug body the channel plug having insulating collars theron, the adapter capable of transmitting an audio signal between the plug body and the channel plug in an attached states, wherein the plug body is equipped with a conical projection having a first channel contact for transmitting the audio signal, and the adapter is equipped with a recess which receives the projection when the adapter is attached to the plug body, the recess having a second channel contact which can be in contact with the first channel contact when the projection is received in the recess, and further wherein the plug body is equipped with a single said projection having left and right first channel contacts disposed concentrically for transmitting the audio signal in stereo, and the adapter is equipped with a single said recess corresponding to the projection, the recess having left and right second channel contacts disposed concentrically and capable of being in contact with the left and right first channel contacts, respectively.