> I'm amazed they (or others) haven't rolled their own wireless audio standard by now. They have. Apple has AirPlay and MFi which includes their own proprieta

> I'm amazed they (or others) haven't rolled their own wireless audio standard by now. They have. Apple has AirPlay and MFi which includes their own proprietary set of codecs and protocols for media streaming over a link similar to but not actually Bluetooth. Quite a few devices support it, such as my hearing aids. Also, while the new Bluetooth LE Audio shares the Bluetooth name, it's a completely new protocol for most intents and purposes; for example audio can be streamed one-way without pairing first, and it's surprisingly low latency (20 ms or so).