90degree Adapter - 3.5MM WITH A TWIST

Old industrial Design in YANKO DESIGN:
The 90degree Adapter focuses on the ergonomics of one tiny, often overlooked, component: the headphone plug. It’s just plain annoying to have that rigid plastic jutting out from your phone, tablet, computer or other devices. The 90degree gets it out of the way by twisting near the intersection of the metal and plastic. The plug becomes flush with your device, making it easier to hold or rest in a case.

https://www.yankodesign.com/2013/04/23/3-5mm-with-a-twist