The Gooshy Step Talking Sequencer, model 673, is a direct selection communicator designed for use by individuals with cognitive, communication, or speech disabilities. When the device is activated, it plays a series of pre-recorded messages (a total of 300 seconds long), allowing a user with limited communication skills to carry on a simple conversation. The device can be used for sequencing, testing, directions, multiplication, memorization, medical instructions, storytelling, and sing-along. POWER: Uses 4 double-A batteries. DIMENSIONS (HxLxW): 2 x 4.5 x 10 inches.