A speaker device including: a hollow case; a drive unit housed in the case and configured to cause a diaphragm to vibrate; and a curved diaphragm having a flat plate curved and arranged to stand in an upright position on an upper surface of the case, wherein a diaphragm of the drive unit is exposed at a part of a surface of the case, and a part of a base end of the curved diaphragm abuts on the diaphragm of the drive unit, and the curved diaphragm is compressively deformed through a standing pole arranged to extend between a tip end of the curved diaphragm and the case, whereby vibration of the diaphragm of the drive unit is allowed to propagate to the curved diaphragm and the case so that sound is allowed to come out of the diaphragm of the drive unit, the curved diaphragm, and the case.