The Alesis iO Dock Pro Audio Dock for iPad is a universal docking station specifically designed for iPad. It gives musicians, recording engineers and music producers the interface they need to create and perform with iPad. The iO Dock facilitates recording, performing and creating music at home, in mobile situations and virtually anywhere in between. Built to accommodate all current app-development standards including Core MIDI, the iO Dock is a universal device that supports music-creation apps, instruments, mics and devices. It even has phantom power, a high-impedance guitar switch and a 1/4" footswitch input.