Pendant Ceiling Microphone System The EasyUSB MicPOD 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 CeilingMIC microphones and any professional audio mixer, internal DSP and echo cancellation can now be integrated into any manufacturer’s audio mixing system. Includes: One EasyUSB MicPOD IO Interface (1) Four CeilingMIC microphones (white) (4) 2-year Limited Hardware Warranty