iPhone and APTX-HD finally works with extra peripherals

@Roman_Benvenuti, I am not quite sure what you’re asking…
This is from their website and you can tell from the color of the LED what codec it is running. (same information can be found on the product insert which comes with the product)
Sometime it will default back to SBC or aptx, you can press the button once to change to back to aptx-HD (yellow LED)