BGVP has released an interesting adapter T01S , which allows you to connect various wired headphones to smartphones equipped only with a USB -C or Lightning connector.
The model is available in several versions designed to connect headphones with 2.5 mm, 3.5 mm and 4.4 mm minijacks . The device also acts as an external digital-to-analog converter – the CX31993 chip from Connexant is built into the connector , capable of working with 32-bit / 384 kHz PCM and DSD128 signals (with forced conversion to PCM).
The BGVP T01S adapter can be ordered online starting at $20.