Hey, I spent a few hours trying to get those headphones working yesterday. Everytime I selected HFP on Ubuntu 20.04 the selection just went blank. Any tips greatly appreciated! Thanks.
If you're into listening to music, you may be interested in AutoEQ [1]. Those guys have done some measurements and provide info on how to equalize the sound. For this particular headset, it's somewhat less boomy. You can use PulseEffects [2] to control equalization.
[0] pa-modules-bt: https://github.com/EHfive/pulseaudio-modules-bt/wiki/Package...
[1] AutoEQ: https://github.com/jaakkopasanen/AutoEq
[2] PulseEffects: https://github.com/wwmm/pulseeffects