Communication apparatus and helmet

摘要

A communication apparatus includes a support structure (41) that is fastenable to a safety helmet (58). A vibration conduction microphone (54) is carried by the support structure. The vibration conduction microphone and the speaker enclosure (43) are positioned so that, when the support structure is fastened to the safety helmet, the vibration conduction microphone and the speaker enclosure come into contact with a rear of the wearer's head.