The present disclosure relates to a cabinet including an inlet on a front side thereof; a first chamber positioned inside the cabinet and defining a space for accommodating clothes through the inlet; a second chamber positioned under the first chamber and defining a space separated from the first chamber; a hanger bar positioned in the first chamber and configured to hold the clothes accommodated in the first chamber; and a driver including: a motor configured to generate torque; a vibrating body configured to support the motor and vibrate alternately in a first rotation direction and a second rotation direction opposite to the first rotation direction by rotation of the motor; and a motion converter configured to rotate together with the vibrating body and convert the vibration of the vibrating body in connection with the hanger bar such that the hanger bar reciprocates along a predetermined movement direction, wherein the hanger bar is configured to reciprocate with different amplitudes and periods depending on a number of times that the motor rotates.