EASY TWIST OPERATION:Designed for kitchen cooking and children time control .one key operation. So simple that elderly grandma and 5-year-old kids can use it easily MAGNETIC&TIME MANAGEMENT: 99-minute countdown timer with magnetic back to stay on task, tablet, iron wall, assists with organization and concentration. helps ease transitions and encourages independence and productivity for all abilities, including those with Autism, ADHD, or other special needs QUIET OPERATION&LED BLINK DIGITAL: No loud ticking provides the silence and focus for school, homework, and other silent activities, blink led digital number will remind you when time goes off in silent mode. Ideal for special needs, children, parents, teachers, office staff/professionals, and students ADJUSTABLE ALARM SOUND:3 levels alarm sound from silence to 90db,you will easily be able to hear this alarm in another room. It is loud and clear. you will no longer worry about overcooking INTELLIGENT ENERGY SAVING:The digital light will dim in 5 seconds and shutdown in another 5 seconds when there is no operation.you don't need to worry about the power down with its Intelligent energy saving function