Video appears to show official Lightning to 3.5mm adapter for iPhone 7 without headphone jack - 9to5Mac

Since the rumor started back in November, there’s been more and more evidence that the next iPhone will drop the 3.5mm

Apple to sell replacement Lightning to 3.5mm headphone adapter for $9 - 9to5Mac

Vinylville

iPad Pro - Wikipedia

These Bowers & Wilkins headphones are $900, but the Lightning cable is free - The Verge

Apple Lightning to USB 3 camera adapter for iPhone / iPad

Apple's Lightning EarPods and 3.5mm adapter do have DACs

Apple headphones - Wikipedia

USB-C head-to-head teardown

Video shows working version of what appear to be official Apple Lightning Earpods - 9to5Mac

Chinese accessory maker shows prototype 3.5mm aux jack-to-Lightning dongles ready for iPhone 7 - 9to5Mac

The iPhone USB-C/Thunderbolt Thread: what works?, Page 4