Simple and Beautiful Rainbow Design: Featuring a bright rainbow pattern, this visual timer turns time management into a fun, engaging activity for kids. The colorful disc gradually shrinks, helping children intuitively understand the passage of time. Perfect for classrooms, kitchens, bedrooms, libraries, gyms, and study areas. Battery Powered Convenience: This visual timer is powered by two AAA batteries (not included), making it easy to place anywhere without messy cords. When the batteries run low, the indicator light flashes to remind you to replace them, preventing timing errors and ensuring the countdown function continues to work accurately. Multiple Colors and Sizes for Any Space: Choose between a square timer (3.5 x 3.5 x 1.5 inches) or a round timer (3.7 x 3.5 x 1.5 inches) to fit your desk, wall, or learning corner. Various border colors let you match your décor style. Both shapes are designed to be , portable, and easy for both kids and adults to operate. Easy One-Knob Operation: To set the visual timer, simply rotate the center knob to your desired time and watch the rainbow disc shrink as time counts down. No complicated settings or programming. Press the "/*" button once to pause, with a flashing green light, and press again to resume timing when you are ready to continue your task. Silent Operation with Flexible Alerts: Designed with a no-ticking movement, this timer provides quiet, distraction-free use during study, work, or nap time. Select from three volume modes-mute, low, or high-so you can rely on light-only or sound plus light alerts. All modes automatically stop after 100 seconds for added safety and comfort.