Pneumatic Adjustable-Height Lectern / Mobile Standing Desk. Offering a versatile and clean design, this high-quality portable lectern caters to a variety of uses and environments, including office, classroom, and healthcare settings. Highlights include a convenient pneumatic foot pedal that quickly and quietly adjusts the height between 28” and 42.5”, allowing presenters to comfortably sit or stand. When the lectern is used for formal presentations, the presenter’s shelf can be easily set at a choice of three comfortable angles.