An assembly for supporting an infant includes a fabric body defining a pocket between an upper layer and a lower layer of the body at one end of the fabric body, the pocket accessible via an opening selectively closeable to seal the pocket. A receiver detects and receives an unvoiced signal, a fully voiced signal, or a mixed voice remote signal. With a simple operation of pivoting the operating lever of the working member, the clutch can be easily switched between a state where the tapered roller is engaged in a wedgewise manner so as to drive and rotate the output shaft and a state where the wedge engagement of the tapered roller is cancelled to freely rotate the output shaft.