Ear piece transducer

An electro-acoustic transducer for use in a human auricle having an external auditory meatus comprising an outer casing housing having within it an electro-acoustic transducer element and formed with a front surface of a diameter larger than the opening of the external auditory meatus and sufficient in size to engage with a concave portion of an auricle, and having a back surface having at least two points respectively supported by inwardly facing tragus and anti-tragus portions of the auricle when the casing is engaged with the concave portion of the auricle, and a cord supporting member substantially rigid with and extendably formed backwardly and downwardly from the back of said outer casing so as to contact with an external surface of said auricle at at least one point positioned lower than each inwardly facing portion contacting the back surface of said outer casing and supporting an external connection cord led from said electro-acoustic transducer element.