less hereinafter referred to as a u201c low pitched sound u201d is output from the bone conduction type speaker 29 to the side face 14 by contact vibration this low pitched sound is transferred to a facial bone 36 directly under the side face 14 and recognized by the user the bone conduction type speaker 29 is pressed against the side face 14 with sufficient force by the spring force of the upper end portion of the ear hanging portion 11 when using the microphone 32 the user plastically deforms the plastically deformable tube 31 thereby moving the microphone 32 to a position proper from the user 39 s mouth 0036 fig3 shows a perspective view of a glasses attaching type speakerphone unit 45 attached to glasses 40 in fig3 and the figures thereafter an ultra directional speaker 17 a bone conduction type speaker 29 a plastically deformable tube 31 and a microphone 32 are the same structure as those in the ear hanging type speakerphone unit 10 fig1 and 2 so the same reference numerals as those of the ear hanging type speakerphone unit 10 are applied while the glasses attaching type speakerphone unit 45 is equipped with only a single ultra directional speaker 17 it may be.