[Easy to use and Intelligent battery saving] Twist One Button Operation, So simple that elderly grandma and 5-year-old kids can use it easily. Silver knob and Black body, just twist the knob to set the time, press to start or stop. The digital light will be darkened in 5 seconds and shut down in another 5 seconds, which can last battery life. [Magnetic&Time management] With two magnets on the back, you can stick to the classroom whiteboard, cooker, student's tablet, iron wall, fridge, sports gym, or other steel places. help students focus on study, Time Management on the shower, games, etc, teacher organization for the classroom, mothers cooking, baking, egg boiling, also help those with Autism ADHD ease transitions and encourages independence and productivity for all abilities. [Large LED Display and Continuous Bright Function] 3-inch Large digital numbers with Continuous Bright Function make it easy to read at a long distance, even in the big meeting room, classroom, big kitchen, or exercise room. [Loud Alarm and Digits Blink function] 3 levels of alarm sound mode, can be quiet, normal, or up to 90db. Does not beep unnecessarily when making a timer setting. Can hear this alarm in another room, no more worry about overcooking. The blink-led digital number will remind you when time out in Silent mode. [Note: Remove the film on the two silicone pads] We found that some customers felt that the magnetic properties of the product were insufficient or there were obstacles when they operated the timer with one hand in the refrigerator or on the desktop. This is because the protective film on the silicone pad reduces friction. Please remove the protective film before using the timer.