1. A system including a controller device and an information processing device, the controller device comprising: a first transceiver configured to transmit operation data from the controller device to the information processing device; and a first processing system that includes at least one processor circuit coupled to a memory device and the first transceiver, the at least one processor circuit configured to: determine that a first input has been detected and/or sensed on the controller device; in response to determination of the first input, execute a first process using further input that is detected and/or sensed on the controller device, the first process being a process for controlling a media device different from the information processing device by causing the controller device to output a control signal that is receivable by the media device; and cause the transceiver to transmit, to the information processing device, data indicating execution of the first process, the information processing device comprising: a second transceiver configured to receive the operation data and the data indicating execution of the first process; a second processing system that includes at least one processor circuit coupled to a memory device and the second transceiver, the at least one processor circuit configured to: execute a second process using the operation data received by the second transceiver; and set the second process in a different mode in response to receiving the data indicating executing of the first process.