| 摘要 |
A transceiver adapted for mounting upon straps of a gas mask or a helmet is smaller in size and weight, and therefore excellent in fittingness, which makes handling of the transceiver less cumbersome even when a user wears the gas mask or the helmet. The transceiver enables a user to communicate with his or her communication partner even when the user does his or her own work. In construction, the transceiver (1) has a rotatable casing (2). The casing (2) receives therein a bone conduction speaker portion (3) and a bone conduction microphone portion (4), and is pivoted to a supporting member (5). The supporting member (5) is provided with engaging means (7 and 8), which engage with straps (11 and 12), respectively. <IMAGE>
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