Abstract: A transmission system for transmission of audio voltage signals has a first transmission portion which includes a cable (16) coupled to a first face of a substantially flat cover member (22). The cable (16) and cover member (22) are integrally coupled to form one entity. Recessed from a surface of a second face of the cover member are socket contacts (24, 26) which receive audio signals from the cable (16). A second transmission portion includes a printed circuit board (32) fixedly secured within an insulating casing (40) through an access opening. The printed circuit board has a transmission circuit coupled to an antenna (38). Connection of the first and second transmission portions is facilitated by connection plugs (34, 36) of the second transmission portion making contact with the socket contacts (24, 26) of the first transmission portion.