USB 3.1 Type C Male To Dual 3.5mm Stereo Female Headphone Sockets Cable

Now available from PMD Way is this useful USB 3.1 Type C Male To Dual 3.5mm Stereo Female Headphone Sockets Cable.

That's a mouthful, however one end connects to your Android phone with USB C socket - or a newer MacBook - and the other end gives you two headphone sockets. 

Available in black or white, around 16cm in length.