The 90 degree 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 90 degree 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~
Designer: Mohammad Reza Navaei
[ via yankodesign.com ]