| 摘要 |
PURPOSE:To expand a range of a hand-held microphone and a radio equipment by providing an infrared ray light emission section turnably to the hand microphone. CONSTITUTION:An infrared ray emission section 2 fitted to a bottom of a hand-held microphone 1 provided with a press-to-talk switch is tuned horizontally for 180 deg.. That is, the infrared ray emission section 2 of the hand-held microphone 1 is turned freely to direct the infrared ray emission section 2 of the hand microphone 1 toward a light receiving section 6 of a radio equipment 5 at all times. Thus, even when the position of the hand-held microphone and the radio equipment is located in any way, the both are surely connected by having only to turn the infrared ray emission section 2 of the hand-held microphone in the direction of the radio equipment. Thus, the effective range between the hand microphone and the radio equipment is expanded. |
