It is a Bluetooth 5.4 transmitter that you can use with ... and its key differentiator is that it includes all of Qualcomm's high-res codes: AptX, AptX HD, AptX Lossless, AptX Adaptive, and ...

though AirFly notes that the AirFly Pro 2 has aptX support via Qualcomm, which is definitely an upgrade. It’s also worth mentioning that the AirFly Pro 2 acts as both a transmitter and receiver ...