GAGACOCC4-Pin XLR Male to 3.5mm TRRS Female Balanced Audio Adapter 10cm Cable

...that had the exact cable I was looking for, which was a 4-pin Micro XLR balanced to 3.5mm female adapter which supports both balanced and unbalanced headphones. Despite hearing that using adapters like these could potentially damage an amplifier, I was able to successfully use it with my Loxjie P20 without consequence. These guys are the real deal.