A connected-device-information managing unit that obtains connection information that is predetermined information for connection from a connected device as a communication counterpart, holds it, and, when a communication process is completed normally, holds a parameter value used in the communication process as normal connection information which is a part of the connection information for each connected device, and a hands-free controller that performs a communication process based on the connection information. When a communication process is started with a device that normal connection information has been already stored in the connected-device-information managing unit, the hands-free controller sets a parameter based on the normal connection information to perform the communication process.