There's a free adapter in every box. If you keep it plugged into your headphones, how is your day going to be any different?
I guess you could buy two pairs and swap them out...?
But then again I don't buy apple in the first place.
http://www.androidcentral.com/moto-z-doesnt-have-headphone-j...
The headphone jack is a waste of space, and redundant. Fortunately, it'll be a USB-C standard.
DACs and additional signals processing should be fine tuned for their respective speaker/microphone drivers.
Now I need to buy 4 additional adapters from Apple for $40 or carry an adapter with me everywhere I go?