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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an embodiment of the
present invention. FIG. 2 is an electric circuit diagram showing an embodiment for preventing the
power switch from turning off. M: microphone, 1: metal portion, S: power supply switch, C □:
capacitor, TR □, TR2: transistor, T: timer, FET: field effect Transistor. B R4R5〜1(
【Detailed description of the invention】) Description 1, the name of the invention My Rohon