The crossbar detaches and everything folds up underneath. The Pro Duo is truly a monstrous keyboard. I'm sure it weighs more than 100 pounds. The lid has two handles so that two people can carry it together. It is loaded with features that are activated by tabs.
Upper manual has a total of eight stops each for Flute, Clarinet and Percussion.
Three way switch for percussion decay, and a phrasing switch. Cancel switches for Sustain Upper Manual, Sustain Lower Manual, Flute, Clarinet and Percussion. Volume sliders for lower manual, flute, clarinet, sustain, and percussion. Main output, headset output and a bass pedal input.