SOUND EFFECTS AND MOVING MOUTH The sound effects and moving mouth features are activated by squeezing either of the horse's ears. If the sound becomes distorted or the mouth stops working please replace the batteries. MOTION-ACTIVATED GALLOPING The motion activated galloping sensor is located in the horse's head and will make galloping soundds when a child bounces on the horse. This There is a switch on the battery compartment with three settings: OFF, TRY ME, and ON. This switch must be set to ON in order for the motion-activated galloping to work. . VOLUME CONTROL You can adjust the sound effect volume by sliding the volume switch on the battery compartment to either low or high). BATTERY REPLACEMENT The battery compartment is located under a Velcro strip on the left side of the horse's mane..