This microphone can be passed around during audience question time or used by a presenter wishing to play the Jerry Springer game. To turn it on, slide the switch from the OFF position to the ON position.
Healthy operations of the unit is indicated by a little red light which momentarily turns on then off again as you slide the switch to the ON position.
If the red light does not go out after you turn the microphone ON, the 9V battery needs replacing. Spare batteries are usually placed on the lectern.
Microphone gain is controlled by the volume control on the touch panel.