The PS190 allows 5 HDMI sources to share one display or projector with resolutions up to UHDTV (3840x2160). The 3.5mm stereo input port allows line level microphone or mobile device to be mixed with audio extracted from the selected HDMI input then re-injected into the HDMI stream. An RCA stereo output provides a pre-amplified output for local speakers if the volume from the display is inadequate or if ADA assisted listening equipment is required. The system´s auto-sense, auto-switch feature combined with the automatic integrated display power on and off makes this solution extremely easy to use. For installs that require Crestron, AMX, or other 3rd party control systems, an RS-232 connector is provided for power, source selection, and volume control.