Their answer was finding a device that ran "aptX Low Latency" (40mS)
https://en.wikipedia.org/wiki/AptX#aptX_LL
All of the other alternatives probably work OK for non-interactive content or anything we already tolerate distance speed of light delays for (E.G. videocalls); but do so largely by delaying the video to match the audio.
Their answer was finding a device that ran "aptX Low Latency" (40mS)
https://en.wikipedia.org/wiki/AptX#aptX_LL
All of the other alternatives probably work OK for non-interactive content or anything we already tolerate distance speed of light delays for (E.G. videocalls); but do so largely by delaying the video to match the audio.