MULTIPURPOSE: - The benefit of this timer is to cultivate good time management habits, suitable for early education, schools, homes, and offices. Make great study timer, teacher timer, classroom timer, countdown timer, silent timers, kitchen timers, toddler timers, kids timers, and more!SPECIAL NEEDS: - The classroom timer utilizes a blue disk to show the time left so that children can intuitively understand the passage of time. No distracting ticking, children can focus more on completing tasks. Ideal for special populations and people with constant anxiety. Recommended for all parents and teachers.TIME MANAGEMENT TOOLS: - Visual Timer overcomes the inability of traditional timers to concretize the abstract concept of time. The visual depiction of "time remaining" enables children, students, teachers and adults to practically improve their time management, alleviate anxiety, refuse procrastination, and increase productivity.QUALITY ASSURANCE: - We provide two years warranty. If you have any questions about our timer, please contact us promptly and we will provide you with a satisfactory solution.EASY TO USE: - Turn the dial clockwise to adjust the time. It will alarm when the time is up. This visual countdown timer alarm can set the tone to loud or low, and the alarm time to 3 or 60 seconds. Requires 2 "AAA" batteries (Not Included).