A speaker device includes a magnetic circuit, a vibration system, a frame and a terminal. The frame is formed into a frame shape, and an inner wall thereof holds the magnetic circuit. Particularly, the frame has an opening for ventilation, which makes a rear surface positioned on a side opposite to a sound output direction and a side surface curved to a direction of the sound output direction from a peripheral end of the rear surface communicate with each other, and the terminal covers the opening on the rear surface of the frame. Therefore, the opening is provided on the side surface of the frame, and ventilation performance of the speaker device is ensured. In addition, by such amount that no opening is provided on the rear surface of the frame, a setting space of the terminal can be enlarged on the rear surface of the frame.