USB Type-C connector - 3.5mm stereo jack socket, with digital chip for headsets Listen to your favourite PLAYLIST ANYWHERE, ANYTIME on your mobile phone Do you have a mobile phone, but can't connect your headphones? Then we have just the thing for you! The USB Type-C connection is becoming ever more popular, with fewer and fewer mobile phones having a 3.5 mm jack port. Using our MA 10, you can convert the USB Type-C port of your phone into a 3.5 mm jack port to connect your headphones. So you don't have to stop listening to your favourite music with your new phone. 4-pin Supports audio playback and headset function