The working principle of the wireless microphone is to convert the sound signal into an electrical signal through the microphone, and then through the internal modulation circuit to convert the electrical signal into a high-frequency radio signal, which is transmitted through the transmitting antenna.
The wireless microphone at the receiving end receives the radio signal through the receiving antenna, and then converts the radio signal into an electrical signal through the demodulation circuit, and finally outputs the sound through the speaker. Wireless microphone uses radio signal to transmit sound, to achieve wireless long-distance voice transmission, convenient, practical, high flexibility, widely used in speech, performance and live recording and other fields.