The microKEY is a compact USB MIDI keyboard that’s ideal for the musician who wants to assemble a convenient and compact music production system. All models feature the acclaimed velocity-sensitive Natural Touch mini-keyboard found on instruments such as the microKORG XL+ and microARRANGER. Features: USB MIDI keyboard – thin, lightweight, and USB-powered Velocity-sensitive natural-touch mini-keyboard with excellent playing feel Octave Shift and Key Transpose features access the full MIDI note range Versatile controls include arpeggiator buttons, sustain/tap button, and joystick (25 key) Pitch Bend and Modulation wheels add expression to your performance (37 key, 61 key) Plug and play computer connectivity; no need to install a driver Can be connected directly to an iPad Dual USB ports; ideal for adding Korg's nanoPAD or other USB devices to your setup