1. [Easy to use, smart and power saving] With one-touch operation, grandma and 5-year-old children can easily get started. Silver knob and black body, just turn the knob to set the time, press to start or stop. After 5 seconds, the digital light will be dimmed, and after another 5 seconds, it will be turned off, and the battery life can continue. 2. [Magnetic & Time Management] There are two magnets on the back, which can be attached to classroom whiteboards, cooking utensils, student tablets, iron walls, refrigerators, gyms and other steel places. Time management that helps students focus on study, showers, games, etc., classroom teacher organization, mothers cooking, baking, hard-boiled eggs, also helps people with autism with ADHD ease transitions and encourages independence and productivity for all abilities. 3.Large LED Display and Continuous Lighting FunctionLarge numbers with continuous lighting function make it easy to read from a distance even in large conference rooms, classrooms, large kitchens or gyms. 4.Loud Alarm and Digital Flashing Function3-level alarm sound mode, can be quiet, normal or up to 90db. There will be no unnecessary beeps when making timer settings. The alarm can be heard in another room, no worries about overcooking. A flashing digital number alerts you when it times out in silent mode.