The Explore-A-Center Busy Box, model 1811, is a sensory busy box designed for use by children with severe physical, upper extremity, or cognitive disabilities. This toy encourages parallel play for two to four children at one time, providing users with eight activities which turn on multi-colored blinking lights, mechanical music, vibration, and many different sounds including children’s laughter, water splashing, and circus music. Side mirrors allow for visual recognition. It has a volume control to adjust the music and sound effects. The unit can be used on the floor or a tabletop. POWER: Uses 4 double-A and 4 C batteries. DIMENSIONS (LxWxH): 17 x 19 x 6 inches.