The Da-Lite Lexington Special Needs Adjustable Floor Lectern with Microphone and Premium Sound System is a 42 x 30 x 38-46" floor lectern that comes with a microphone and premium sound system that provides 100W of RMS power. It has an LED digital clock/timer with countdown capability. All the controls have Braille identification, and it has an over-size reading surface that holds a three ring binder. Heavy duty industrial casters provide easy mobility. The height can be adjusted by using the electric height adjustment switch. This lectern is for 220V electrical systems only. The microphone has an electret-type, unidirectional element which offers miniature size and super sensitivity. It features a built-in pre amp, a slim and flexible gooseneck, and a male XLR connector to plug directly into the microphone input jack on the lectern.