I was talking about WiFi 2.4 vs Bt WiFi, I know it's confusing. Sure, BT is everywhere, but true WiFi (non Bluetooth) options like the product mentioned above is a rare bear. True WiFi is lossless. Whatever gets transferred gets received exactly as it was transferred, no compression codecs. The only loss is signal loss due to a poor WiFi signal. BT took over because it is more adaptive to mobile system, whereas WiFi sucks a lot more power than BT. It is is what it is and can't really be modified like BT can for low power etc.
For a home system, WiFi transfer is preferable to BT because you're not limited to a battery operated device and WiFi is not a non compressed transfer. I mean, that's the theory, but BT is getting so good I just wonder if going WiFi nonBT is really worth it anymore. Also, WiFi 2.4 has 11 channels while BT has something like 40-80, and BT doesn't broadcast as far as WiFi 2.4, so interference with WiFi is another problem BT tries to solve.