How to use TR623 voice amplifier with TR503 wireless microphone?

Adjust the frequency of the loudspeaker first, and then adjust the frequency of the transmitter to the same frequency point, and the frequency can be successfully linked. TR623: Retekess official contact information: retekess Official Store: RETEKESS EUROPEAN Store: Retekess RU: Email: ali-express@ WhatsApp: 86 15638550861 Facebook: Facebook: Instagram:
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