First, buy the battery of the wireless microphone launch machine. In order to ensure that signal distortion and frequency interference are not available when the system is used normally, it is necessary to use a sufficient battery. When purchasing, the alkaline 9V battery is preferred.

Second, how to know whether the battery energy of the launch machine is sufficient as soon as possible. In various brands and models of wireless microphone systems, most of the receiver does not have the energy display function of the launching machine battery. Although some wireless transmitters have a battery low -pressure display, users generally rarely pay attention to this problem in use. In the normal use of wireless microphones, there is something that happens from time to time caused by insufficient battery to cause audio signal distortion or frequency interference. In order to prevent this phenomenon, the operator can use the mixer PFL pre -listening function in a timely manner in the normal use of wireless microphone, and use the headset to listen to the signal of the wireless microphone. If the sound definition is slightly reduced or the noise increases slightly It should be replaced immediately to avoid psychological pressure caused by insufficient battery energy to the operator.

Third, how to replace the battery in the middle of the performance. It should be convenient, fast, and simple when replacing the battery in the performance. The good way is to turn on the "dumb" switch of the tuning channel channel, so that the wireless microphone is in a dumb state. If there is no mixer without this function, you can first close the output volume of the wireless microphone receiver, and then turn off the transmitter. Power supply, turn on the power supply of the transmitter after replacing the battery, and then restore the receiver output volume to the original gain. If the receiver does not output the volume switch, you can turn off the input gain of the mixer or use the LINE/MIC selector for switching. After the battery is replaced, turn on the mixer and then reset the mixer or the selection device.

Why not change the battery after the push of the wireless microphone passage? It is necessary to explain here. If the method of turning off the passage push is more cumbersome, the general microphone is added with effective processing sounds in the singing.