Wherever you go whenever inspiration strikes. Perform and record anywhere! The iRig Keys 2 Pro is the ultra-slim and highly portable universal MIDI controller keyboard for iPhone iPod touch iPad and Mac/PC. Simply put it works with almost everything. This version of the amazing music tool features a range of features that set it apart from the rest of the competition. It includes controls for continuous parameters like volume tremolo vibrato rotary speaker speed and more via an expression pedal as well as an input for a sustain pedal. The iRig Keys 2 Pro connects directly to your iOS or the USB port on your Mac/PC. It features 37 velocity-sensitive full-sized keys- thats a full 3-octave range plus one note. Meaning you have a large range of keys for playing on. Even though theres plenty of keys the Keys 2 Pro takes up minimal space on your desktop and can easily fit in a backpack or a carry-on bag.