|According to environment it can be occur.
||It can be used by multiple users at once, there is no confusion.
|It is depend on mickerphone connection structure.
||No noise occur in any situation.
|Users need to setting up for power, frequency, mickerphone line etc.
||There is no need of additional settings, it is handle through one touch button
|It may be occur in some cases such as increasing mickerphone volume.
||equipped with howling suppressing function.
|Direction of sound and quality can be poor in certain spaces.
||It is dual speaker sound technology which is comfortable in vast gathering and the sound is very clear in vast space.
|It is different according to device.
||Provide easy to use function like volume selection, buzzer and echo.