1, wired microphone, is the audio signal received by the microphone through the microphone wire, which is directly input to the audio input end of the amplifier, and then amplified by the amplifier to drive the speaker to make sound. The disadvantage is that due to the limitation of microphone wire length, it can not be far away from the power amplifier and is easy to scream.
2. Wireless microphone. One is voice signal, which is converted into radio wave signal by a micro radio transmitter in the handheld microphone, and then received by a micro radio receiver inserted in the stereo, converted into audio signal, input to the stereo for power amplification, and emitted from the speaker. Physical picture:
Therefore, batteries should be installed in the handheld microphone and receiver, and then the wireless microphone receiver should be plugged into the microphone pickup socket of the amplifier. The advantages are that it is not limited by the intervention of the audio cable between the power amplifier and the microphone, which can lengthen the distance, reduce the occurrence of howling, and can walk around and interact with the audience at will to increase the atmosphere of the scene.