USB C (Female) to 3.5mm headphone jack (Male) adapter.
I'm looking for such a thing but can't find one online. I don't know the specific name for that adapter. I'm planning on using it on my ROG Cetra type-C earphones and connect it to the aerocooler's 3.5mm jack along with the charging cable to make use of the By-pass charging feature. I can't connect anything on the bottom port because it's gonna block my hands. I can get by if I change the orientation but it's not very comfortable.