KH Professional Wireless Goosneck Conference Microphone Desktop Conference Microphone

Frequency Range:VHF 201-267MHz Wireless service range:30M S/N ratio: 80dB Working Temperature:-5°C-45 C Receiver: Channel:1 Power Supply: AC 12V Modulation Mode:FM Microphone element:Condenser,Cardioid Frequency response: 100-12000Hz Power requirement:2X1.5V pencil cells Controls:ON/OFF switch Indication: Red ring LED in the gooseneck Current Consumption:2 W Receiver case:Plastic Turn on the receiver power switch, the power indicator light is not on. Check whether the power cord is plugged in, whether the power supply socket has electricity or not. In of the microphone speech signal is normal, but no sound output, check if the volume knob is adjusted to the minimum, the audio line is connected.