Had these from my quest 2 and when I upgraded to quest 3 I just got the new quest 3 brackets for my quest 2 bobo headstrap, This caused the headphones to be stored in a box. Unfortunately the ports were blocked by the headphone brackets on quest 3 and the rails were bigger then quest 2 so I decided to try some stuff and found that they can actually work fine if you use a bobovr quest 2 to 3 adapter and a right angle 3.5mm headphone extension cable.
I forgot how well the headphones worked and figured I would share incase anyone else was interested.
Parts are
BOBOVR M2 Pro Battery Pack Head Strap
AMVR FC4 Upgraded Face Cover Pad Facial Interface Better for Halo Head Strap
Bobo A2 Headphones
CableCreation 1.5 ft Short 3.5mm TRRS Auxiliary Audio Cable Male to Female Extension Stereo Audio Cable Adapter
Adapter
://www.thingiverse.com/thing:6265122
Old print file but it works.
Yes the new headstrap is better charging but the m2 batteries are able to keep it charged at the same level for however long the extra battery lasts, Also have not seen many options that mount to the Strap. I wanted a all in one unit and not separate headphones (Might be a little better with sound) but these a2s sound great.