To use the microphone correctly, proceed from the following aspects:
In order to ensure normal use, sufficient batteries must be used. If conditions are available at the time of purchase, it is best to use 9V alkaline batteries.
The distance between the microphone and the mouth is usually about a punch. If the microphone is too close, it is very loud, and it is easy to spray the microphone; at the same time, the microphone should not be too far away, otherwise the sound cannot be transmitted, especially if the microphone with low sensitivity is too far away, it is equivalent to no effect.
Do not place the microphone on a straight line parallel to the ground and your mouth. It should be lower than your lips and placed at the lower corner of your mouth at a 45-degree angle so that you can use it flexibly. Otherwise, your face will be lowered when you lower your head. It may be blocked by the microphone.
After adjusting the position of the microphone, do not tap with your hands to see if there is a sound, and do not blow with your mouth. These actions are very unsightly. You can check whether the microphone switch is turned on, upward is open, downward is closed, this is internationally unified.