The VP-602HHTU brings advanced matrix switching to any project. The mix of source audio and two XLR mic inputs help create a video and audio presentations like never before. While a source is being displayed, the audio from the microphones are mixed into the display audio creating seamless audio. It is also equipped with four knobs that allow easy control of the volume with a mute function. This product supports 4K resolutions giving the best to a classroom environment or a learning facility. Both outs can be extended 70 meters and has mirrored HDMI outputs. This product supports RS-232 and Ethernet control which allows for communication between two remote locations.