For those of us concerned about losing functionality with the dongle, we can rest easy:
“Here’s the good news: Apple’s little adapter, which converts the digital audio stream from the iPhone (and it’ll work on any device running iOS 10) to the analog signals required by our ears, works fine and sounds fine. My old wired iPhone headphones worked well with it, right down to the microphone and control buttons.”
https://sixcolors.com/post/2016/09/iphone7review/
“Here’s the good news: Apple’s little adapter, which converts the digital audio stream from the iPhone (and it’ll work on any device running iOS 10) to the analog signals required by our ears, works fine and sounds fine. My old wired iPhone headphones worked well with it, right down to the microphone and control buttons.”
https://sixcolors.com/post/2016/09/iphone7review/