The Card Phone, as it is touted, is a small modular phone. The device named Aiek E1 is the creation of Aiek which can be used for a host of services. The battery can power the device for straight 3 days on usage and with the external module, it can be extended 900%. It can be used as a bluetooth device when paired with tablets and phablets and it can also use with DSLR lenses for exceptional photos. It costs only $10.