In an information processor connected with an external apparatus by wireless to transmit and receive data, a connection with a plurality of external apparatuses can be easily changed. The information processor includes a wireless USB (WUSB) communication unit configured to connect to each of a plurality of external apparatuses by wireless to transmit and receive data to and from each external apparatus. A CPU acquires information about at least one external apparatus among a plurality of external apparatuses via the WUSB communication unit. The acquired information is displayed on a display unit before the communication is started to perform image processing between the information processor and one of a plurality of external apparatuses via the WUSB communication unit.