| 摘要 |
A dual-mode transmission device is provided for use with a radio device configured for either push-to-talk operation or voice-operated operation. The dual-mode transmission device includes a mode selecting apparatus that may be switched between a first position in which a push-to-talk mode is enabled and a second position in which the push-to-talk mode is disabled, allowing a single headset or similar device to be used in either mode.
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