If two microphones work on the same frequency, interference will occur and they cannot be used, and two transmitters cannot use a receiver at the same time. The receiver must have one or two external antennas, and there should be open transmission space between these antennas and the transmitter.
2. The operation of the wireless microphone should be correct.
When using a wireless microphone, do not put the transmitter in your pocket, because if you unconsciously extend your hand into the pocket, you may encounter a switch or pull the line, and if there is something else in the pocket, it will also affect the transmitter. It is best to fix it on the host's belt.
3. The battery of the wireless microphone.
Before using wireless microphones, make sure the battery is fully charged. If the electric quantity is low or dead, it can lead to problems such as complete absence of signal, reduced operating range, sound distortion, and interference. If there is a problem with the battery, replace it in time and do not mix old and new batteries. In addition, use new high quality alkaline batteries.