VADDIO 999-8535-000 EasyUSB MicPOD I/OFour Channel TRIO microphone interface with AEC Reference Input and four balanced line outputs. The TRIO I O interface is based on Vaddio's SmartMIC technology, a simple and less expensive approach to adding live audio conferencing to room designs. As an interface between the TRIO Mics and any professional audio mixer, internal DSP and echo cancellation can now be integrated into any manufacturer's audio mixing system. Each TRIO SmartMIC is equipped