1. First, make sure the wireless microphone and speaker are turned on and have been charged or plugged in.
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2. Find an interface with \"MIC\" on the stereo and plug it into the receiver of the wireless microphone.
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3. Turn on the switch on the wireless microphone and wait for the connection light (usually red or blue) to flash.
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4. Once the light starts to blink, it indicates that the microphone and receiver have been connected successfully. Test whether the microphone can work properly on the wireless microphone.
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If the above steps still do not allow the wireless microphone to connect to the speaker, check the power supply of the wireless microphone and receiver, as well as the setting and connection interface of the speaker.