UPC 694318016091

• MIDI keyboard controller for composing digital music and playing virtual instruments
• 25 full-sized, square-front, semi-weighted keys and 16 multi-color RGB backlit pads that respond to velocity and pressure
• 8 knobs and 24 buttons assignable for hands-on control of your digital audio workstation, plug-ins, and instruments
• Powered by USB connection to computer with optional power adapter for more complex setups
• Includes AIR Xpand! 2 virtual instrument and Ableton Live Lite free downloads

The Alesis VI25 is an advanced USB MIDI keyboard controller that lets you take command of your music software with a series of pads, knobs, and buttons without needing to reach for your mouse. The 25 keys are semi-weighted, velocity- and pressure-sensitive, and you can expand the keyboard to the full melodic range to play bass lines, chords, and melodies using dedicated Octave Up/Down buttons. Pitch and modulation wheels expand the expressive capabilities of your performing, and you can launch clips or finger drum using the 16 velocity-sensitive RGB trigger pads. VI49 features 8 assignable knobs and 24 assignable buttons for manipulating effect plugins and virtual instruments. Open and close filters, adjust volume levels, activate effects, tweak parameters, and more. A single USB connection to your Mac or PC provides power and MIDI functionality, allowing you to plug into your computer and start making music. These controllers are USB hub-powered and do not require a power supply. If you would like to purchase a power supply, they can be powered with an optional power adapter sold separately. No, these controller are class-compliant meaning that they are plug-and-play and do not require a specific driver download in order to function. The VI series controllers will function on Windows XP, Windows Vista, Windows 7 and Windows 8 as well as all Mac operating systems that are 10.4.11 and above. Also, because they are class-compliant, they will continue to function as Windows and Apple come out with later updates and operating systems. Yes you can! Use a standard five-pin MIDI cable to connect this MIDI Out to the MIDI In of an external MIDI device . If you are using VI25 to control an external MIDI module, connect VI25's power input to a power outlet using an optional power adapter . These controllers do not. They are midi controllers and are meant to trigger software in your computer that has sounds built into them such as Ableton Live, Apple Logic ect... Press the ROLL button to activate or deactivate Roll Mode. In this mode, pressing and holding a pad causes the pad to re-trigger at a rate based on the current Tempo and Time Division settings. This button can function as a toggle or momentary button. In Roll Mode, some controls have different functions: Inputs / Outputs Display: 3-digit, 7-segment LCD Power Dimensions 24.6" x 12.4" x 4.5" Weight: 7.0 lbs