M-Audio Axiom AIR 49 49-Key USB MIDI Keyboard Controller with Pro Tools Express and Ignite by AIR Keyboard controller with 49 expressive synth-action keys and aftertouch 12 great-feeling trigger pads respond to pressure and velocity Made for expressive performance: roll button aids in creating realistic drum parts 8 rotary encoder knobs plus 9 long-throw 70mm faders with function buttons 3 banks of pad and knob assignments with color-coded illumination Selectable velocity curves to match any playing style plus assignable pitch bend and mod wheels