Why won't my USB headset work OTG with my Honor 6x?
The lack of answer suggests this probably isn't worth pursuing, it probably depends upon phone, headset, and operating system. Another way this works out is with my LG G3 phone, Logitech A-0374A USB headset, and Android 6, with OTG cable: I get media sound through the headphone, but on phone calls neither the headphone nor the microphone is recognised, the phone's speaker and mic are used instead. I've looked at a couple of other places where this is discussed, with no resolution.