User manual Child Guidance ™ Radio Control Shape Sorter Dump Truck MHZ Moving forward, backward, dump & return with lights and sound. Features SL Try me function Press the button (hat), to hear sound effects and make lights. | 2. Radio Control Function -Forward Button Press the forward button, and the Dump truck moves forward, as it plays “forward” sound effects and lights flash. When the button is released, the truck stops. Both sounds and lights stop.