A system comprising a plurality of electronic devices, wherein each electronic device comprises: a wireless communication unit; a touchscreen; and a controller; wherein the controller of one of the plurality of electronic devices is configured to set a host function and to generate a group with the plurality of electronic devices (100A, 100B, 100C, 100D) by pairing the host electronic device with at least one electronic device through the wireless communication unit, control the plurality of electronic devices (100A, 100B, 100C, 100D) included in the group to share at least part of content and to simultaneously display the content on touchscreens of the plurality of electronic devices, wherein the controller is further configured to: display the at least part of the content on the touchscreen of each electronic device included in the group based on a number of touch inputs applied to the touchscreens of the plurality of electronic devices and reception times of the touch inputs, upon sequential reception of the touch inputs, receive device information and event information from the plurality of electronic devices (100A, 100B, 100C, 100D) included in the group, configure information to be displayed on a notification bar using the device information and event information and, upon reception of a sliding input applied from one side of the touchscreen of a specific electronic device of the plurality of electronic devices, reconfigure the notification bar such that device information or event information of the specific electronic device is displayed as representative information, wherein the reconfigured notification bar is displayed throughout the touchscreens of the plurality of electronic devices. a wireless communication unit; a touchscreen; and a controller; wherein the controller of one of the plurality of electronic devices is configured to set a host function and to generate a group with the plurality of electronic devices (100A, 100B, 100C, 100D) by pairing the host electronic device with at least one electronic device through the wireless communication unit, control the plurality of electronic devices (100A, 100B, 100C, 100D) included in the group to share at least part of content and to simultaneously display the content on touchscreens of the plurality of electronic devices, wherein the controller is further configured to: display the at least part of the content on the touchscreen of each electronic device included in the group based on a number of touch inputs applied to the touchscreens of the plurality of electronic devices and reception times of the touch inputs, upon sequential reception of the touch inputs, receive device information and event information from the plurality of electronic devices (100A, 100B, 100C, 100D) included in the group, configure information to be displayed on a notification bar using the device information and event information and, upon reception of a sliding input applied from one side of the touchscreen of a specific electronic device of the plurality of electronic devices, reconfigure the notification bar such that device information or event information of the specific electronic device is displayed as representative information, wherein the reconfigured notification bar is displayed throughout the touchscreens of the plurality of electronic devices. display the at least part of the content on the touchscreen of each electronic device included in the group based on a number of touch inputs applied to the touchscreens of the plurality of electronic devices and reception times of the touch inputs, upon sequential reception of the touch inputs, receive device information and event information from the plurality of electronic devices (100A, 100B, 100C, 100D) included in the group, configure information to be displayed on a notification bar using the device information and event information and, upon reception of a sliding input applied from one side of the touchscreen of a specific electronic device of the plurality of electronic devices, reconfigure the notification bar such that device information or event information of the specific electronic device is displayed as representative information, wherein the reconfigured notification bar is displayed throughout the touchscreens of the plurality of electronic devices.