Please follow these steps for troubleshooting:
- Check the Microphone Power: Ensure the microphone switch is turned on. Verify if the battery is depleted, if the battery polarity is reversed, or if the microphone volume is set too low.
- Battery and Signal Check: Examine the battery level of the microphone. If the battery is low, the effective range might decrease. Also, check for nearby interference frequencies, as they can reduce the effective range of the microphone.