Many factors determine the battery life of a wireless microphone.
Different microphones have different circuit shapes, and the power consumption generated is also different. It is determined by the current draw of the microphone and the voltage required by the microphone itself to operate.
Also, it depends on the capacity of the battery itself. Under normal circumstances, an ordinary wireless microphone can be used for 5-6 hours. If the power is relatively strong, it can be used for 7 hours. -8 hours It also depends on the usage time and battery durability.