Click here to watch the video on YouTube.The NewTek Connect Sparks come in two different flavors, HDMI for $499 and SDI for $699. They use a subset of NDI technology call NDI HX that delivers NDI connectivity at a lower cost, with slightly lower quality and some additional latency. Don't fret, the video images look fantastic. For the bulk of our customers, the lower cost and added features more than compensate for this. They allow you to use Wi-Fi connectivity into your NDI switcher. Being wire free gives you an enormous amount of flexibility for camera placement and movement. Just be aware of any dark spots in your coverage to avoid dropped signals. The BirdDog Studio is a more expensive product ($895) based on NDI technology that supports both SDI and HDMI with cross conversion and loop out, tally light, V-Mount and Anton Bauer mounting options, and has almost zero latency. These features make it a more professional product. It does not support WiFi.