| 摘要 |
PURPOSE: A wireless headset device for an effective module type is provided to decrease the noise of a system for preventing that a feedback outputted from a speaker is inputted to a microphone. CONSTITUTION: An RF(Radio Frequency) detector(30) electrically communicates with a battery(5) and a switch controller(25). A speaker(20) electrically communicates with the RF detector(30) and connects to the battery(5) through a switch(10). The RF detector(30) responds to the detected RF signal and connects to the switch(10). A low drop-out circuit electrically communicates with the RF detector(30) and connects to the battery(5) through the switch(10).
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