Question about Ugreen CM403

Yes, you can plug the adapter into the headphone socket of your stereo system and use it in transmitter mode (TX) to transmit the audio signal to your AirPods via Bluetooth. To do this, switch the adapter to transmitter mode, set the AirPods to pairing mode and the adapter will connect to them wirelessly. The adapter also supports the connection to two Bluetooth headphones at the same time.