The Bluetooth protocol is full duplex.
But as far as I can see the A2DP doesn't support this.
....from the A2DP profile to the Handsfree Profile in order to run full
duplex audio (this is not possible in A2DP)...
A2PD is designed to uni-directionally transfer an audio stream in up to 2
channel stereo, either to or from the Bluetooth host.
This is not possible.
Bluetooth devices are either master (computers, phones, etc) or slave (speakers, mouse, etc). While both devices have the ability to receive and transmit, only master devices have the hardware needed to pair connections.
If you want to add Bluetooth to your computer, there are a wide variety of off-the-shelf Bluetooth adapters to ...
The outputs are likely to be BTL (Bridge-Tied Load) meaning the negative outputs have a signal at the same DC level but opposite in AC polarity. This adds 6dB to the max output level and eliminates the need for coupling caps.
If so, in order to use them single-ended, ignore RN/LN (do NOT ground them!) and capacitively couple RP and LP (which I assume are ...