If you're looking to use a Smartphone/Tablet with the DENAFRIPS DDC/DAC over USB, the video is for you: YouTube
Good news - DENAFRIPS DDC/DAC supports Android OS and iOS over USB. For Android Smartphone/Tablet with USB Type-C port, you may connect:
Android Device->USB Type C/B Cable->DENAFRIPS DDC/DAC
For Apple iPhone/iPad with Lightning port, you may connect:
Apple Device->Camera Adapter->USB Type A/B Cable->DENAFRIPS DDC/DAC
Useful Links:
Happy listening!
Team Vinshine Audio