Duo for iPhone SE/5 Coral. Duo by Devicewear for the iPhone SE/5. Dress up or dress down? Now you can have it either way. The Duo for the iPhone SE/5 comes with a multi-tone case that is made of an inner and outer shell. You can easily snap the outer shell off or on, depending on your mood. The inner shell is made of a soft, matte material that is shock-absorbent and flexible. The outer shell adds another layer of low-luster