Requires external computer connected via USB. < p>The most compact version of the Event Master controllers delivers instant access to the most crucial features, for everything from a tradeshow booth to a large corporate event, or even a music tour. < br>< br>The EC-30 gives the operator a compact surface and simplified workflow, while still providing fingertip control where budget and space are the deciding factors. The EC-30 is an extension of the Event Master toolset, bringing the essential selections for sources, presets, layers and destinations to your fingertips. As a USB peripheral added to your existing Event Master control computer, it is the most cost-effective and compact alternative to a full-sized controller.< /p>< b>EC-30< /b>< ul>< li>Complimentary control of the Event Master Series switchers< /li>< li>High resolution T-Bar< /li>< li>4 user-programmable buttons with customizable LCD displays < /li>< li>Dedicated Background layer button< /li>< li>8 dedicated Layer selection buttons with multi-page functionality< /li>< li>Dedicated layer function buttons for transitions, freeze, and FX arming< /li>< li>12 user-definable Destination buttons with multi-page functionality< /li>< li>USB port for connection to host computer < /li>< li>Status LEDs and color coded LCD displays< /li>< li>Auto-ranging 12v 2.08a power supply (100-250VAC)< /li>< li>2 user-assignable custom function buttons< /li>< /ul>