Various omnidirectional microphones have different functions according to the needs of different locations.microphone professional， For example, some have built-in audio speakers, as well as mp3 input and productivity features.

Generally speaking, an omnidirectional microphone should have a sound output base. Since this type of microphone is omnidirectional, has strong perception, and has good results, an experienced omnidirectional microphone must have an anti-echo function.

Therefore, the grade of the omnidirectional microphone and its anti-echo effect are very important reference components. In the above properties, we can know that the difference between an omnidirectional microphone and a basic microphone is:

1. Long pickup distance 2. 360 degree educational pickup 3. Higher sensitivity 4. Contra --echo (vs--whistle, echo cancellation) 5. Built-in speaker system in most designs

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