A multi-function device for performing, at least, telephone communication and facsimile functions, comprising: a main unit, a wireless telephone, and a charger for charging a battery of the wireless telephone. The charger can be fixed to the main unit and can be separated from the main unit. When the charger is fixed to the main unit, the battery of the wireless telephone can be charged in the position that is fixed to the main unit. Furthermore, if the charger is placed in a position separated from the main unit, the battery of the wireless telephone can be charged in that position. That is, the charger and the wireless telephone can be utilized even when the charger has been removed from the main unit.