An ear set device that includes a main body; and one or more earphones configured to output a response signal, wherein at least one of the one or more earphones includes: a first detecting unit configured to detect whether the one or more earphones are attached to a user, wherein the main body includes a communication unit configured to perform wireless communication with the one or more earphones, a second detecting unit configured to detect a location of the main body, and a control unit configured to, based on a determination that the main body is inside a vehicle and a determination that the vehicle is operating while the one or more earphones are attached to the user, receive, from the vehicle, information related to an operation of the vehicle and output a response signal corresponding to the received information through the one or more earphones is disclosed.