You're asking for a lot of pretty specialized things that don't really address the broader market. If you truly need single-digit ms latency, wired solutions or

You're asking for a lot of pretty specialized things that don't really address the broader market. If you truly need single-digit ms latency, wired solutions or proprietary wireless is going to be better. The whole point of codecs is to use less of the incredibly congested 2.4G band and deliver similar performance. There are trade-offs, such as latency, in this case. Also, range is a component of antenna and power usage, both of which could be tailored to reach 100ft. Problem is, people would prefer smaller antennas and lower power, since 100ft of range is useless to most. There's nothing stopping Bluetooth from doing that though; it's just a matter of the devices that exist today. Not sure I can help you on the sound quality though. That sounds like a problem with the devices you've been using. AAC or LDAC both sound fine to me... and are available on pretty much any device.