Provided is a cleaner system, according to one embodiment of the present disclosure, which comprises a terminal and a cleaner provided to be capable of wireless communication with the terminal. The cleaner comprises: a main body; a cleaning unit provided in the main body; a communication unit that wirelessly communicates with an external terminal; a control unit for processing information on the cleaner; and a battery for providing power, wherein the terminal visually provides information transmitted from the cleaner to a user. According to embodiments of the present disclosure, it is possible to enable a user to easily grasp information on the cleaner even if the user does not pay great attention to the cleaner, and to catch the user's attention by means of an alarm.