An audio device for modifying the voice transmitted during a telephone call particularly suitable for a mobile telephone system receives from the user of the audio device an analog speech signal. The holder device lets a hunter or shooting enthusiast carry a rifle with its weight supported on either his right or left hip. In some embodiments, the corn composition comprises cracked corn, water and no more than about 0. Flow rate controller 63, based on the thermal capacity determined by thermal capacity determining unit 61 and the temperature regulating ability determined by temperature regulating ability determining unit 62, controls the flow rate of the temperature regulating medium sent by the fan. The absorbent satisfies the relation \u03c31\u2212\u03c30\u2266500, where \u03c30 \u03bcScm is the electric conductivity of the ink and \u03c31 \u03bcScm is that of a mixture of 5 g of the ink and 1 g of the flame-retardant material.