We had some audio streaming solutions in the older nRF24 series, but as you can see from the link these are no longer recommended for new designs.
The audio chips in particular had some performance issues, and you would often get issues with breaks and clicks in the audio unless the range between the devices was very short.
What kind of audio quality do you require, and what is your latency target?
We are working on a small wireless microphone and receiver system. Need uncompressed 44.1khz 24 bit audio. Latency not more than 15ms. And 100mtrs of range.
We have no devices that can reliably transfer more than 1Mbps of raw data at 100 meters unfortunately.
Technically our devices can transfer up to around 1.4Mbps from one node to another, but you will have no overhead for retransmissions, which means you would have to expect significant packet loss whenever there is some interference in the area, or if something is blocking the RF signal.
That you would have to ask them, as I don't know how they implemented their product (and I wouldn't be allowed to share these details if I did know)
In general it's worth mentioning that you can use a PA/LNA solution with our devices in order to improve the link budget and range. That could help you reach the required 100m range, also in situations where you have a lot of interference, or something blocking the signal. The drawback of adding a PA/LNA is added current consumption, added hardware complexity and added BOM cost.
Also, when sending at more than 1Mbps data rate you have to expect data loss, like I mentioned earlier. So while it is technically possible, you need some mechanism to handle the packet loss. Otherwise you will get very jarring, noticeable clicks in the audio each time a packet is lost.
Finally, you might want to consider if there is some compression available that can reduce the datarate without adding a lot of latency and/or noticeable reduction in audio quality.
