The VI49 is an advanced USB/MIDI keyboard MIDI controller that lets you take command of your music software with a series of pads, knobs, and buttons. With 49 velocity-sensitive semi-weighted keys with after touch and octave up/down buttons, you can expand the keyboard to the full melodic range and play bass lines, chords, and melodies. VI49 also features 12 assignable knobs and 36 assignable buttons for manipulating effect plugins and virtual instruments: Open and close filters, adjust volume levels, activate effects, tweak parameters, and more. 16 velocity-sensitive RGB trigger pads allow you to launch clips or finger drum with exceptional response and colourful visual feedback. Plus, pitch and modulation wheels expand the expressive capabilities of your performing. Requirements - Mac: OS X 10.7, 10.8, or 10.9 (software requirements: OS X 10.8 or 10.9), PC: Windows 7 or Windows 8; multicore processor; 2 GB RAM, Available USB Port. With VI49, artists and producers are given a virtually unlimited range of creative and versatile options with pro software such as a specifically tailored Pro Tools | First software bundle for hardware. This amazing audio and MIDI recording software helps inspire any artist, musician or singer-songwriter to create, record and share all their ideas across the world at any time.