Simple Concept: As time passes, the rainbow disk of the visual timer disappears counterclockwise. It is interesting and easy to understand. This timer helps kids and adults develop a sense of time and improve time management. Easy to Use: Turn the center knob clockwise to set the desired time duration. The timer then begins counting down. The protective cover is made of soft silicone material that effectively protects the device. No Ticking and Mute Function: The timer operates silently, making it ideal for sound-sensitive environments. Choose from three alert volume options: mute, weak, or loud. Alarm durations are 3 seconds or 30 seconds. Press the top button to stop the alert. Suitable for Many Occasions: This 60-minute analog timer can be used in various settings. It works as a kitchen timer, study timer for kids, classroom task timer for teachers, or meeting timer. Low Battery Reminder: The indicator light flashes when the battery power is low. Requires 2 AAA batteries (not included). Specifications: Material: ABS, PC, silicone Power supply: 2 AAA batteries (not included) Product size: 9.3 x 9.3 x 5.3 cm Certification: CE, FCC, RoHS