Unfortunately it does not work on my B&O H6 headphones. Only one channel is playing, it has 3 pin jack, H6 has 4 pin. In description it is clearly noted that device is compatible with H6 headphones. It is working only with B&O H6 cable, but...
AliExpress seller did not respond and i tried some hacks... an adapter jack handle was too thick to fit in headphones completely, so i made it thinner.. brute force.
During the process it felt apart to two pieces and now only one piece it fits in and it works. I don't know if that was an intention of product maker
But now it also works with both pieces together as it was initially.
Otherwise I’m satisfied with it. The sound seems ok, hifi I guess and the mic(it is on adapter), phone calls works too. I added some pics for clarification
