When Apple dropped the iPhone 7’s 3.5 mm headphone Jack, for many it was a shock. To smooth the transition process, the company offered a complete adapter Lightning-to-3.5 mm so you can connect your favourite headphones at least.
Apple has suggested that users will switch to wireless headphones or headphones with a Lightning connector. Apparently, Apple has now decided that the transition period is completed, because complete with XS iPhone with this adapter already is not offered. The set includes only EarPods Lightning connector, Lightning to USB cable and USB power adapter.
Recalcitrant users become attached to your 3.5 mm headphones, you’ll have to buy an adapter yourself. In the Russian online store Apple brand the adapter is 690 rubles.