This is a simple UI phone, ideal for users who are not so familiar with such devices. A flexible key has been provided for each function on the dual screen, enabling the device to suit its user while providing optimum convenience. This not only provides optimized keys for each situation – by changing the key display for each entry made via the touch screen, for example – but it also allows users to design their own graphic interiors by decorating the phone with graphic images or by using the top and bottom display and setting a fun and interesting GUI theme. The front of the frame is made of aluminum for strength and environmental reasons.