A vibration generating device (VB3) comprising: a vibration generating member having a movable part movable in a vibration direction (VD); a vibration transmitting member connected to the movable part ; and a base body that holds the vibration generating member , Characterised by : the vibration generating member comprises: a first yoke having: a first surface orthogonal to the vibration direction (VD), and a second surface parallel to the vibration direction (VD), a second yoke having: a third surface orthogonal to the vibration direction (VD), the third surface facing the first surface with a first gap (GP1) provided therebetween, and a fourth surface parallel to the vibration direction (VD), the fourth surface facing the second surface with a second gap (GP2) provided therebetween, wherein the first gap is narrower than the second surface, a coil that is placed in a vicinity of at least one of the first yoke and the second yoke , the coil generating magnetism; and a support body that movably supports the first yoke in the vibration direction (VD). a vibration generating member having a movable part movable in a vibration direction (VD); a vibration transmitting member connected to the movable part ; and a base body that holds the vibration generating member , Characterised by : the vibration generating member comprises: a first yoke having: a first surface orthogonal to the vibration direction (VD), and a second surface parallel to the vibration direction (VD), a second yoke having: a third surface orthogonal to the vibration direction (VD), the third surface facing the first surface with a first gap (GP1) provided therebetween, and a fourth surface parallel to the vibration direction (VD), the fourth surface facing the second surface with a second gap (GP2) provided therebetween, wherein the first gap is narrower than the second surface, a coil that is placed in a vicinity of at least one of the first yoke and the second yoke , the coil generating magnetism; and a support body that movably supports the first yoke in the vibration direction (VD). a first yoke having: a first surface orthogonal to the vibration direction (VD), and a second surface parallel to the vibration direction (VD), a first surface orthogonal to the vibration direction (VD), and a second surface parallel to the vibration direction (VD), a second yoke having: a third surface orthogonal to the vibration direction (VD), the third surface facing the first surface with a first gap (GP1) provided therebetween, and a fourth surface parallel to the vibration direction (VD), the fourth surface facing the second surface with a second gap (GP2) provided therebetween, wherein the first gap is narrower than the second surface, a third surface orthogonal to the vibration direction (VD), the third surface facing the first surface with a first gap (GP1) provided therebetween, and a fourth surface parallel to the vibration direction (VD), the fourth surface facing the second surface with a second gap (GP2) provided therebetween, wherein the first gap is narrower than the second surface, a coil that is placed in a vicinity of at least one of the first yoke and the second yoke , the coil generating magnetism; and a support body that movably supports the first yoke in the vibration direction (VD). <EOS>