[Easy to Use and Smart Power Saving] One-button operation is so simple that both old grandma and 5-year-old children can use it easily. Silver knob and black body, just turn the knob to set the time, press ⊙ to start or stop. The digital light will dim in 5 seconds and turn off in another 5 seconds, which can extend the battery life.[Magnetic and Time Management] There are magnets on the back, you can stick to classroom whiteboards, cookers, tasks, student tablets, iron walls, refrigerators, gyms or other steel places. Help students focus on learning, time management such as showers and games, teachers organize classes, moms cook, bake, boil eggs, and can also help people with autism ADHD transition easily and encourage independence and productivity of all abilities.[Large LED Display and Constant Brightness Function] Large screen with constant brightness function. Constant bright numbers make it easy to read from a distance. Even in large conference rooms, classrooms, large kitchens, gyms.[Loud Alarm and Digital Flashing Function] 3-level alarm sound mode, which can be silent, normal or up to 90db. No unnecessary beeping when setting the timer. This alarm can be heard in another room, no more worrying about overcooking. In silent mode, the flashing LED digital numbers will remind you when the time is up.[Perfect Gift] This product is a perfect gift for family, friends or yourself