The ATEN™ VP2120 Seamless Presentation Switch integrates video matrix switch, AV streaming, audio mixing, and collaborative functions into one compact device. Supports ATEN™ Video Presentation Control App for convenient collaboration and meeting presentations control using your mobile device. Bi-directional wireless content streaming of up to 4 participants simultaneously with quad-view support. Built-in Audio DSP – mixes Mic input, HDMI input, and the last streaming input for HDMI or audio output. Advanced online idea-sharing functions – Whiteboard, Chat Room, File Sharing, Group Broadcasting, and Video Capture.