an earphone to be installed in the console table of the atm when the user inserts a card into the card read portion 2 of the apparatus 1 the card read portion 2 reads a magnetic stripe section 6 of the inserted card in which the hearing sensitivity data of the user has been recorded and sends the data to the control portion 4 on receiving the data the control portion 4 stores the hearing sensitivity data in the data memory reads the stored data executes a predetermined operation thereon and transmits a signal to indicate a sound volume and a tone quality each corresponding to the hearing sensitivity to the voice output portion 3 this indication signal indicates a volume determined according to the decibel value of the difficulty of the hearing sensitivity and a tone quality determined by a frequency band e g 3 6 khz to be easily sensed by the hearing organ of the user when a voice output is required during an operation or the like of the user the request is keyed in to the control portion 4 this causes the control portion 4 to generate an indication signal and then the voice output portion 3 generates a voice output with the indicated volume and quality of tone fig2 a 2b are.