The invention relates to a mobile station which comprises two separate user interfaces and an outer covering (10, 11) which can be unfolded. The device has the appearance and the size of a common mobile phone when the outer covering (10, 11) is closed, whereby available is a first user interface being substantially a telephone user interface. When the outer covering (10, 11) of the device is unfolded it exposes a second user interface having a relatively large-sized display (12) and an alphanumeric keypad (15). Alphanumeric messages and graphical information can be transmitted and received using the second user interface.