[Portable Use]Start the timer by long-pressing the power button. The timer will automatically display the preset time facing upwards and begin the countdown. This polyhedron desk efficiency timer is simple, compact, and easy to carry. [Various preset times]The 12-sided timer features 11 preset countdown durations. With a simple flip, the timer starts in just one second. Equipped with a built-in gravity sensor, it supports both count-up and countdown modes: rotate clockwise for count-up and counterclockwise for countdown. [Perfect Time Manager]The 12-sided timer is the perfect time management tool, designed to help you stay focused on any task at hand, whether it's studying, writing, boosting productivity, cooking, boiling eggs, baking, exercising, homework, or classroom activities for kids. [3 modes]This product offers three alert modes: sound, shock, and silent. When flipped with the digital side facing up, it starts the countdown, and the display flashes (allowing you to switch to another duration within 5 seconds). After 5 seconds, the flashing stops, and the duration can no longer be changed. [ LED Display ] The LED display allows you to easily monitor the timer's status, keeping you informed whether the countdown is in progress or has ended. When charging, the display lights up to indicate active charging, and turns off once the battery is fully charged. Color: White Material: plastic Package Contents: 1*Flip timer 1*USB Cable 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.