Sandwich Phone is Mobile Concept phone that layer in many folds like sandwich.
Can use as one product with phone, mp3, Camera circumvolving each floor 360˚. It is UX product that solve depression problem of complex multi device by hardware. Central axis part sandwich phone has amounted to battery that can attach earphone and was designed so that sandwich phone may can play. because there is small projection on part that ground between rotating axis and phone.

Phones of the future
Future gadgets 2050
Concept phones of the future
Green technology presentation