USB-C to 3.5mm Audio Headphone Jack Adapter Cable . Specific Details: Adapter cable can convert USB-C to the 3.5mm Audio, it is perfectly suitable for Type-C Phones, Tablets, PC. That is to say, if you have a Type C device that have no headphone jack, you can still keep using your headphone with this adapter. How to use: Just plug and play, no install needed, it's so small and lightweight that you won't even know you have used it. Using this audio adapter, you can convert the Type C port of your phone into 3.5mm jack. On one end of the cable is Type C USB.