Abstract: An apparatus and a control system to communicate with a portable wireless communication device to act as an electronic account book. The system comprises: an information providing dealer to provide a personal bank savings; an information transmission dealer to define the mailbox of a wireless receiving device and to transmit service information from the information providing dealer; a wireless receiving device, such as an electronic account book, to receive formatted information from different information providing dealers, and for checking the authority by its own machine code. When the user of the wireless receiving device asks for a function service, the information providing dealer will communicate with the information transmission dealer and store the related data of the wireless receiving device.