The Spaceship Busy Box, model 7901, is a sensory busy box designed for use by children with cognitive or severe phsyical disabilities. The child pushes on the wing flaps, buttons, or spaceship body to be rewarded with a NASA countdown, flashing tail lights, jet-motor sounds, and vibrations. The unit can be used on a table or wall-mounted with the included hardware. POWER: Uses 2 double-A and 4 triple-A batteries. DIMENSIONS (LxW): 20 x 15 inches.