Abstract: An accessory communication device for telephone sets includes: a wearer's harness member made of a flexible material for being manipulated to be worn around a user's neck; a pair of earphone arrangements each having a flexible cord and a connector provided thereto detachably held at the opposing sides of the wearer's harness member for being comfortably positioned in a user's ears; and a transmitting fixture having electric circuits and connecting members respectively disposed therein for making electrical connections with the earphone arrangements and a telephone set so as to effect communication transmitting and receiving operations therewith.