The Blackmagic Design Teranex Mini Smart Panel is an add-on item for the Blackmagic Web Presenter so that it can be used as a professional, broadcast quality 2-input live production switcher. This panel adds push button controls, a spin knob, and an Lcd screen that shows video previews, audio meters, video inputs, frame rates, and more. To use it, remove the existing plate on your Web Presenter and replace with this panel. The Blackmagic Web Presenter has built-in switching capabilities but to use them, you need this panel. For SDI, select 1 and for HDMI select 2. With this, you can connect a laptop with a slideshow via HDMI and a camera via SDI and switch back and force when presenting by simply pressing buttons 1/2. The Lcd will confirm your input and provide you with a video preview, including conversions in progress. Disguised as a webcam when connected to your computer, you can use this setup to live stream with encoding software of your choice (the Blackmagic Web Presenter does this on its own but this panel makes the experience a little easier to operate, as well as unlocks the switching function). The Blackmagic Design Teranex Mini Smart Panel is recommended to anyone using the Blackmagic Web Presenter for presentations, events, streaming, teaching, and more.