1, the wireless microphone consists of a handheld microphone and a receiver. The principle is that the handheld microphone is like an FM radio transmitter, and the receiver is equivalent to an FM radio. When in use, it can be used as long as the battery is installed and the receiver is inserted into the microphone input jack of the power amplifier.

2, the circuit working principle. Sound passes through the microphone via RC 1; The high-frequency and low-frequency resistance-capacitance filters formed by RC2 are coupled to the base of the transistor. Due to the positive feedback amplification of the transistor, the high-frequency signal of the high-frequency oscillator composed of LC3 is equivalently fed back to the base of the transistor through C4.

3. Wireless microphone consists of transmitter and receiver. The transmitter converts sound signals into radio signals and sends them into the air. After receiving the radio signal, the receiver converts it back into a sound signal and plays it through the speaker.

Wireless microphone is a portable wireless communication device, which uses radio waves to transmit sound signals to the receiver. A simple wireless microphone consists of the following parts: microphone: capturing sound signals and converting them into electrical signals.

5. The principle of wireless microphone The working principle of wireless microphone is to transmit sound signals through radio waves. The microphone captures sound signals and converts them into electrical signals, and then transmits them through the transmitting antenna. The receiver receives the signal and converts it back into a sound signal, and then plays it out through the speaker or earphone.