The Xboard 49 also allows you to set discrete MIDI channels for each controller and offer unrivalled real-time control and performance features, including Snap Shot that lets you send multiple program changes and controller values by pressing a single button, and Xboard Latch Mode that enables you to define a section of the keyboard as on/off triggers - perfect for drum loops. The Xboard 49 is ultra-portable and can run on USB or batteries. The E-MU Xboard 49 - the next generation of Professional USB/MIDI Controllers.