Bluetooth 5.0 Transmitters

I was wondering if someone has a 5.0 Bluetooth transmitter that they’ve paired with the Nox to see if it is actually APTX LL or not. I have 3 models of the Taotronics TT-Ba07, 08, and 09, none give the + sign when paired to the machine. I’m not trying to use it with the Nox, but another machine. My Q-12 earbuds when paired have the + sign. I need a transmitter to use with the Q-12’s for minimum lag. Any input or suggestions would be highly appreciated.