TIME MANAGEMENT: Magnetic 60-minute analog countdown clock to stay on task, assists with organization and concentration. As time expires, the visible display of the red-disk disappears in a clockwise direction. SPECIAL NEEDS: The visual design of the Time Timer helps ease transitions and encourages independence and productivity for all abilities, including those with Autism, ADHD, or other special needs. QUIET OPERATION: No loud ticking provides the silence and focus for school, homework, and other silent activities. Intuitive Assistive Tech - Ideal for special needs, children, parents, teachers, office staff / professionals, and students AUDIBLE ALERT: the optional alarm signal when time is up can be turned off for sound-sensitive environments. PRODUCT DETAILS: One AA battery required (not included). 7.70 inches x 1.80 inches x 7.70 inches. Ideal size for medium to large groups. Magnetic, wall mount or can stand on a flat surface with foldable feet. Compatible with the Time Timer Visual Schedule Kit Accessory - 8 inch.