The ABC Train, model 5129, is a switch operated toy designed for use by children with upper extremity, severe physical or fine motor disabilities. Designed to help children learn letters, numbers, first words, and greetings, this colorful toy train has been adapted with two switch jacks that allow for five different activations. Once a switch (not included) is activated, children can listen to 30 songs, tunes and phrases along with sounds and lights. Other features include an on/off switch and volume selections. POWER: Uses 3 AA batteries. DIMENSIONS (HxLxW): 7 x 8 x 4 inches. WEIGHT: 1.25 pounds.