If you want to use wired headphones or earbuds on your smartphone, the iFi GO Link Max is an easy way to do it and upgrade the sound coming from your smartphone.

In lieu of connecting headphones to the analog audio-out headphone jack found on every computer and mobile device, the DAC/headphone amp provides audiophile quality digital-music-to-analog conversion.

The SD2 DAC from HIDIZS can drive earphones and headphones ... then HIDIZ supplies a neat little cable that converts from USB-C to Apple Lightning so you can enjoy all that hi-res goodness ...