Digital timer with display and 3 buttons, super easy to read and set. Memory settings: You don't need to set the countdown time every time, it will remember your last time, you just need to press the "ST/SP" button. The classroom timer is equipped with a strong magnetic back 2.0 retractable bracket and hook, which can be placed in locations such as tables, blackboards, dry erase boards, etc., freeing your hands and making things more convenient. Press the side mute button to enter mute mode. When the desktop countdown reaches 00:00, the visual timer has corresponding buzzer reminders and indicator light reminders in both working modes, so it can bring better performance in different scenarios. : Long press the button for more than 2 seconds to fast forward time, perfect for classroom and extracurricular activities, providing an excellent countdown/countdown for teachers and children. Colour: Material:Plastic Size:62x63x24mm Package Contents: 2 * Plate timer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.